WikiCU - User contributions [en]

Tunnels

2019-09-01T04:37:53Z

Torr: /* Famous tunnel explorers */

[[Image:TunnelSystem.png|thumb|240px|Based on Wikipedia's [[w:Columbia University Tunnels|article on the tunnels]].]]

{{wp-also2|Columbia University tunnels}}

Columbia has an extensive '''tunnel system''' connecting most buildings on campus and acting as conduits for steam, electricity, telecommunications, and other infrastructure. The tunnels are a mysterious, foreboding place fully explored only by legendary figures in campus history. They are rumored to be where unspeakable acts of pure horror are committed.

== History ==

:''See main article at [[History of the tunnels]]''

== List of tunnels ==

:''See main article at [[List of tunnels]]''

== Maps ==

Old maps, from the 1950s, are accessible easily from the [[Columbiana]] Library. They are still roughly accurate. If you bug the reference librarian enough she might bring over the newest editions of the grounds maps. These new maps unfortunately can't be posted online due to copyright restrictions.

The map at the top of this article was created by former Columbia student [[Mike Schiraldi]] and released under the GFDL. It was created in 1999 so it's somewhat out of date, and is incomplete. The purple areas, marked "rumored," are just that; they almost certainly don't exist. As described in the map's legend, different colors are used to indicate different types of tunnel and levels of certainty:

* Green lines indicate areas that are not only known to exist but also places that the Columbia administration openly allows students and staff to be. For example, the underground connection between Hartley and Wallach halls.
* Yellow lines indicate areas that are known to exist but considered off-limits to all but Columbia's maintenance workers.
* Purple lines indicate rumored connections that have not been verified. In particular, there is almost certainly no tunnel under Broadway or along College Walk.

==Famous tunnel explorers==

* [[Benoit]] - a famous tunnel explorer who still answers questions about and leads tours of the system
* [[Ken Hechtman]] - a student whose group [[ADHOC]] wrought havoc in the tunnels in the 1980s and subsequently was expelled for stealing uranium from the [[Pupin Hall|Pupin]] basement
* "Brian" - '''Current (2020) CU senior''' who can show students around. Message miningcu@gmail.com. Anonymous emails may be ignored. [[features.columbiaspectator.com/eye/2016/04/13/unearthing-the-underground]]

==See also==

*[[Tunnelling guide]]

== External links ==

* [http://www.columbiauniversitycampus.com/#/restricted-access/Innards-5726/ Restricted Access Photographs]
* [http://www.columbiatunnels.org columbiatunnels.org] - inactive
* [http://www.columbiaspectator.com/node/11905 Forbidden Tunnels Guard CU History] - [[Columbia Spectator]] article
* [http://freethetunnels.blogspot.com/] - FREE THE TUNNELS

=== Photos ===

* [http://www.undercity.org/photos/Columbia/index.htm Photos]
* [http://www.undercity.org/photos/CriticalSpaceEquip/index.htm Cyclotron]
* [http://ltvsquad.com/Locations/urbanexploration.php?ID=83 More photos]
* [http://ltvsquad.com/Missions/Tunnels/ColumbiaU/index.php More photos]
* [http://www.satanslaundromat.com/sl/archives/000503.html And more]

[[Category:Morningside Heights campus]]
[[Category:Tunnels|*]]

Tunnels

2019-02-04T18:59:17Z

Torr: /* Famous tunnel explorers */

[[Image:TunnelSystem.png|thumb|240px|Based on Wikipedia's [[w:Columbia University Tunnels|article on the tunnels]].]]

{{wp-also2|Columbia University tunnels}}

Columbia has an extensive '''tunnel system''' connecting most buildings on campus and acting as conduits for steam, electricity, telecommunications, and other infrastructure. The tunnels are a mysterious, foreboding place fully explored only by legendary figures in campus history. They are rumored to be where unspeakable acts of pure horror are committed.

== History ==

:''See main article at [[History of the tunnels]]''

== List of tunnels ==

:''See main article at [[List of tunnels]]''

== Maps ==

Old maps, from the 1950s, are accessible easily from the [[Columbiana]] Library. They are still roughly accurate. If you bug the reference librarian enough she might bring over the newest editions of the grounds maps. These new maps unfortunately can't be posted online due to copyright restrictions.

The map at the top of this article was created by former Columbia student [[Mike Schiraldi]] and released under the GFDL. It was created in 1999 so it's somewhat out of date, and is incomplete. The purple areas, marked "rumored," are just that; they almost certainly don't exist. As described in the map's legend, different colors are used to indicate different types of tunnel and levels of certainty:

* Green lines indicate areas that are not only known to exist but also places that the Columbia administration openly allows students and staff to be. For example, the underground connection between Hartley and Wallach halls.
* Yellow lines indicate areas that are known to exist but considered off-limits to all but Columbia's maintenance workers.
* Purple lines indicate rumored connections that have not been verified. In particular, there is almost certainly no tunnel under Broadway or along College Walk.

==Famous tunnel explorers==

* [[Benoit]] - a famous tunnel explorer who still answers questions about and leads tours of the system
* [[Ken Hechtman]] - a student whose group [[ADHOC]] wrought havoc in the tunnels in the 1980s and subsequently was expelled for stealing uranium from the [[Pupin Hall|Pupin]] basement
* "Brian" - [[Current (2019)]] CU senior who can show new students around. Message miningcu@gmail.com features.columbiaspectator.com/eye/2016/04/13/unearthing-the-underground

==See also==

*[[Tunnelling guide]]

== External links ==

* [http://www.columbiauniversitycampus.com/#/restricted-access/Innards-5726/ Restricted Access Photographs]
* [http://www.columbiatunnels.org columbiatunnels.org] - inactive
* [http://www.columbiaspectator.com/node/11905 Forbidden Tunnels Guard CU History] - [[Columbia Spectator]] article
* [http://freethetunnels.blogspot.com/] - FREE THE TUNNELS

=== Photos ===

* [http://www.undercity.org/photos/Columbia/index.htm Photos]
* [http://www.undercity.org/photos/CriticalSpaceEquip/index.htm Cyclotron]
* [http://ltvsquad.com/Locations/urbanexploration.php?ID=83 More photos]
* [http://ltvsquad.com/Missions/Tunnels/ColumbiaU/index.php More photos]
* [http://www.satanslaundromat.com/sl/archives/000503.html And more]

[[Category:Morningside Heights campus]]
[[Category:Tunnels|*]]

Tunnels

2019-02-04T18:58:43Z

Torr: /* Famous tunnel explorers */

[[Image:TunnelSystem.png|thumb|240px|Based on Wikipedia's [[w:Columbia University Tunnels|article on the tunnels]].]]

{{wp-also2|Columbia University tunnels}}

Columbia has an extensive '''tunnel system''' connecting most buildings on campus and acting as conduits for steam, electricity, telecommunications, and other infrastructure. The tunnels are a mysterious, foreboding place fully explored only by legendary figures in campus history. They are rumored to be where unspeakable acts of pure horror are committed.

== History ==

:''See main article at [[History of the tunnels]]''

== List of tunnels ==

:''See main article at [[List of tunnels]]''

== Maps ==

Old maps, from the 1950s, are accessible easily from the [[Columbiana]] Library. They are still roughly accurate. If you bug the reference librarian enough she might bring over the newest editions of the grounds maps. These new maps unfortunately can't be posted online due to copyright restrictions.

The map at the top of this article was created by former Columbia student [[Mike Schiraldi]] and released under the GFDL. It was created in 1999 so it's somewhat out of date, and is incomplete. The purple areas, marked "rumored," are just that; they almost certainly don't exist. As described in the map's legend, different colors are used to indicate different types of tunnel and levels of certainty:

* Green lines indicate areas that are not only known to exist but also places that the Columbia administration openly allows students and staff to be. For example, the underground connection between Hartley and Wallach halls.
* Yellow lines indicate areas that are known to exist but considered off-limits to all but Columbia's maintenance workers.
* Purple lines indicate rumored connections that have not been verified. In particular, there is almost certainly no tunnel under Broadway or along College Walk.

==Famous tunnel explorers==

* [[Benoit]] - a famous tunnel explorer who still answers questions about and leads tours of the system
* [[Ken Hechtman]] - a student whose group [[ADHOC]] wrought havoc in the tunnels in the 1980s and subsequently was expelled for stealing uranium from the [[Pupin Hall|Pupin]] basement
* "Brian" - [[Media:Current (2019)]] CU senior who can show new students around. Message miningcu@gmail.com features.columbiaspectator.com/eye/2016/04/13/unearthing-the-underground

==See also==

*[[Tunnelling guide]]

== External links ==

* [http://www.columbiauniversitycampus.com/#/restricted-access/Innards-5726/ Restricted Access Photographs]
* [http://www.columbiatunnels.org columbiatunnels.org] - inactive
* [http://www.columbiaspectator.com/node/11905 Forbidden Tunnels Guard CU History] - [[Columbia Spectator]] article
* [http://freethetunnels.blogspot.com/] - FREE THE TUNNELS

=== Photos ===

* [http://www.undercity.org/photos/Columbia/index.htm Photos]
* [http://www.undercity.org/photos/CriticalSpaceEquip/index.htm Cyclotron]
* [http://ltvsquad.com/Locations/urbanexploration.php?ID=83 More photos]
* [http://ltvsquad.com/Missions/Tunnels/ColumbiaU/index.php More photos]
* [http://www.satanslaundromat.com/sl/archives/000503.html And more]

[[Category:Morningside Heights campus]]
[[Category:Tunnels|*]]

Tunnels

2019-02-04T18:57:57Z

Torr: /* Famous tunnel explorers */

[[Image:TunnelSystem.png|thumb|240px|Based on Wikipedia's [[w:Columbia University Tunnels|article on the tunnels]].]]

{{wp-also2|Columbia University tunnels}}

Columbia has an extensive '''tunnel system''' connecting most buildings on campus and acting as conduits for steam, electricity, telecommunications, and other infrastructure. The tunnels are a mysterious, foreboding place fully explored only by legendary figures in campus history. They are rumored to be where unspeakable acts of pure horror are committed.

== History ==

:''See main article at [[History of the tunnels]]''

== List of tunnels ==

:''See main article at [[List of tunnels]]''

== Maps ==

Old maps, from the 1950s, are accessible easily from the [[Columbiana]] Library. They are still roughly accurate. If you bug the reference librarian enough she might bring over the newest editions of the grounds maps. These new maps unfortunately can't be posted online due to copyright restrictions.

The map at the top of this article was created by former Columbia student [[Mike Schiraldi]] and released under the GFDL. It was created in 1999 so it's somewhat out of date, and is incomplete. The purple areas, marked "rumored," are just that; they almost certainly don't exist. As described in the map's legend, different colors are used to indicate different types of tunnel and levels of certainty:

* Green lines indicate areas that are not only known to exist but also places that the Columbia administration openly allows students and staff to be. For example, the underground connection between Hartley and Wallach halls.
* Yellow lines indicate areas that are known to exist but considered off-limits to all but Columbia's maintenance workers.
* Purple lines indicate rumored connections that have not been verified. In particular, there is almost certainly no tunnel under Broadway or along College Walk.

==Famous tunnel explorers==

* [[Benoit]] - a famous tunnel explorer who still answers questions about and leads tours of the system
* [[Ken Hechtman]] - a student whose group [[ADHOC]] wrought havoc in the tunnels in the 1980s and subsequently was expelled for stealing uranium from the [[Pupin Hall|Pupin]] basement
* "Brian" - '''Current (2019)''' CU senior who can show new students around. Message miningcu@gmail.com [features.columbiaspectator.com/eye/2016/04/13/unearthing-the-underground]

==See also==

*[[Tunnelling guide]]

== External links ==

* [http://www.columbiauniversitycampus.com/#/restricted-access/Innards-5726/ Restricted Access Photographs]
* [http://www.columbiatunnels.org columbiatunnels.org] - inactive
* [http://www.columbiaspectator.com/node/11905 Forbidden Tunnels Guard CU History] - [[Columbia Spectator]] article
* [http://freethetunnels.blogspot.com/] - FREE THE TUNNELS

=== Photos ===

* [http://www.undercity.org/photos/Columbia/index.htm Photos]
* [http://www.undercity.org/photos/CriticalSpaceEquip/index.htm Cyclotron]
* [http://ltvsquad.com/Locations/urbanexploration.php?ID=83 More photos]
* [http://ltvsquad.com/Missions/Tunnels/ColumbiaU/index.php More photos]
* [http://www.satanslaundromat.com/sl/archives/000503.html And more]

[[Category:Morningside Heights campus]]
[[Category:Tunnels|*]]

Tunnels

2019-02-04T18:57:24Z

Torr: /* Famous tunnel explorers */

[[Image:TunnelSystem.png|thumb|240px|Based on Wikipedia's [[w:Columbia University Tunnels|article on the tunnels]].]]

{{wp-also2|Columbia University tunnels}}

Columbia has an extensive '''tunnel system''' connecting most buildings on campus and acting as conduits for steam, electricity, telecommunications, and other infrastructure. The tunnels are a mysterious, foreboding place fully explored only by legendary figures in campus history. They are rumored to be where unspeakable acts of pure horror are committed.

== History ==

:''See main article at [[History of the tunnels]]''

== List of tunnels ==

:''See main article at [[List of tunnels]]''

== Maps ==

Old maps, from the 1950s, are accessible easily from the [[Columbiana]] Library. They are still roughly accurate. If you bug the reference librarian enough she might bring over the newest editions of the grounds maps. These new maps unfortunately can't be posted online due to copyright restrictions.

The map at the top of this article was created by former Columbia student [[Mike Schiraldi]] and released under the GFDL. It was created in 1999 so it's somewhat out of date, and is incomplete. The purple areas, marked "rumored," are just that; they almost certainly don't exist. As described in the map's legend, different colors are used to indicate different types of tunnel and levels of certainty:

* Green lines indicate areas that are not only known to exist but also places that the Columbia administration openly allows students and staff to be. For example, the underground connection between Hartley and Wallach halls.
* Yellow lines indicate areas that are known to exist but considered off-limits to all but Columbia's maintenance workers.
* Purple lines indicate rumored connections that have not been verified. In particular, there is almost certainly no tunnel under Broadway or along College Walk.

==Famous tunnel explorers==

* [[Benoit]] - a famous tunnel explorer who still answers questions about and leads tours of the system
* [[Ken Hechtman]] - a student whose group [[ADHOC]] wrought havoc in the tunnels in the 1980s and subsequently was expelled for stealing uranium from the [[Pupin Hall|Pupin]] basement
* "Brian" - '''Current (2019)''' CU senior who can show new students around. Message miningcu@gmail.com [[features.columbiaspectator.com/eye/2016/04/13/unearthing-the-underground]]/

==See also==

*[[Tunnelling guide]]

== External links ==

* [http://www.columbiauniversitycampus.com/#/restricted-access/Innards-5726/ Restricted Access Photographs]
* [http://www.columbiatunnels.org columbiatunnels.org] - inactive
* [http://www.columbiaspectator.com/node/11905 Forbidden Tunnels Guard CU History] - [[Columbia Spectator]] article
* [http://freethetunnels.blogspot.com/] - FREE THE TUNNELS

=== Photos ===

* [http://www.undercity.org/photos/Columbia/index.htm Photos]
* [http://www.undercity.org/photos/CriticalSpaceEquip/index.htm Cyclotron]
* [http://ltvsquad.com/Locations/urbanexploration.php?ID=83 More photos]
* [http://ltvsquad.com/Missions/Tunnels/ColumbiaU/index.php More photos]
* [http://www.satanslaundromat.com/sl/archives/000503.html And more]

[[Category:Morningside Heights campus]]
[[Category:Tunnels|*]]

Tunnels

2019-02-04T18:55:32Z

Torr: /* Famous tunnel explorers */

[[Image:TunnelSystem.png|thumb|240px|Based on Wikipedia's [[w:Columbia University Tunnels|article on the tunnels]].]]

{{wp-also2|Columbia University tunnels}}

Columbia has an extensive '''tunnel system''' connecting most buildings on campus and acting as conduits for steam, electricity, telecommunications, and other infrastructure. The tunnels are a mysterious, foreboding place fully explored only by legendary figures in campus history. They are rumored to be where unspeakable acts of pure horror are committed.

== History ==

:''See main article at [[History of the tunnels]]''

== List of tunnels ==

:''See main article at [[List of tunnels]]''

== Maps ==

Old maps, from the 1950s, are accessible easily from the [[Columbiana]] Library. They are still roughly accurate. If you bug the reference librarian enough she might bring over the newest editions of the grounds maps. These new maps unfortunately can't be posted online due to copyright restrictions.

The map at the top of this article was created by former Columbia student [[Mike Schiraldi]] and released under the GFDL. It was created in 1999 so it's somewhat out of date, and is incomplete. The purple areas, marked "rumored," are just that; they almost certainly don't exist. As described in the map's legend, different colors are used to indicate different types of tunnel and levels of certainty:

* Green lines indicate areas that are not only known to exist but also places that the Columbia administration openly allows students and staff to be. For example, the underground connection between Hartley and Wallach halls.
* Yellow lines indicate areas that are known to exist but considered off-limits to all but Columbia's maintenance workers.
* Purple lines indicate rumored connections that have not been verified. In particular, there is almost certainly no tunnel under Broadway or along College Walk.

==Famous tunnel explorers==

* [[Benoit]] - a famous tunnel explorer who still answers questions about and leads tours of the system
* [[Ken Hechtman]] - a student whose group [[ADHOC]] wrought havoc in the tunnels in the 1980s and subsequently was expelled for stealing uranium from the [[Pupin Hall|Pupin]] basement
* "Brian" - Current (2019) CU senior who can show new students around. Message miningcu@gmail.com features.columbiaspectator.com/eye/2016/04/13/unearthing-the-underground/

==See also==

*[[Tunnelling guide]]

== External links ==

* [http://www.columbiauniversitycampus.com/#/restricted-access/Innards-5726/ Restricted Access Photographs]
* [http://www.columbiatunnels.org columbiatunnels.org] - inactive
* [http://www.columbiaspectator.com/node/11905 Forbidden Tunnels Guard CU History] - [[Columbia Spectator]] article
* [http://freethetunnels.blogspot.com/] - FREE THE TUNNELS

=== Photos ===

* [http://www.undercity.org/photos/Columbia/index.htm Photos]
* [http://www.undercity.org/photos/CriticalSpaceEquip/index.htm Cyclotron]
* [http://ltvsquad.com/Locations/urbanexploration.php?ID=83 More photos]
* [http://ltvsquad.com/Missions/Tunnels/ColumbiaU/index.php More photos]
* [http://www.satanslaundromat.com/sl/archives/000503.html And more]

[[Category:Morningside Heights campus]]
[[Category:Tunnels|*]]

Tunnels

2019-02-04T18:55:04Z

Torr: /* Famous tunnel explorers */

[[Image:TunnelSystem.png|thumb|240px|Based on Wikipedia's [[w:Columbia University Tunnels|article on the tunnels]].]]

{{wp-also2|Columbia University tunnels}}

Columbia has an extensive '''tunnel system''' connecting most buildings on campus and acting as conduits for steam, electricity, telecommunications, and other infrastructure. The tunnels are a mysterious, foreboding place fully explored only by legendary figures in campus history. They are rumored to be where unspeakable acts of pure horror are committed.

== History ==

:''See main article at [[History of the tunnels]]''

== List of tunnels ==

:''See main article at [[List of tunnels]]''

== Maps ==

Old maps, from the 1950s, are accessible easily from the [[Columbiana]] Library. They are still roughly accurate. If you bug the reference librarian enough she might bring over the newest editions of the grounds maps. These new maps unfortunately can't be posted online due to copyright restrictions.

The map at the top of this article was created by former Columbia student [[Mike Schiraldi]] and released under the GFDL. It was created in 1999 so it's somewhat out of date, and is incomplete. The purple areas, marked "rumored," are just that; they almost certainly don't exist. As described in the map's legend, different colors are used to indicate different types of tunnel and levels of certainty:

* Green lines indicate areas that are not only known to exist but also places that the Columbia administration openly allows students and staff to be. For example, the underground connection between Hartley and Wallach halls.
* Yellow lines indicate areas that are known to exist but considered off-limits to all but Columbia's maintenance workers.
* Purple lines indicate rumored connections that have not been verified. In particular, there is almost certainly no tunnel under Broadway or along College Walk.

==Famous tunnel explorers==

* [[Benoit]] - a famous tunnel explorer who still answers questions about and leads tours of the system
* [[Ken Hechtman]] - a student whose group [[ADHOC]] wrought havoc in the tunnels in the 1980s and subsequently was expelled for stealing uranium from the [[Pupin Hall|Pupin]] basement
* "Brian" - Current (2019) CU senior who can show new students around. Message miningcu@gmail.com
features.columbiaspectator.com/eye/2016/04/13/unearthing-the-underground/

==See also==

*[[Tunnelling guide]]

== External links ==

* [http://www.columbiauniversitycampus.com/#/restricted-access/Innards-5726/ Restricted Access Photographs]
* [http://www.columbiatunnels.org columbiatunnels.org] - inactive
* [http://www.columbiaspectator.com/node/11905 Forbidden Tunnels Guard CU History] - [[Columbia Spectator]] article
* [http://freethetunnels.blogspot.com/] - FREE THE TUNNELS

=== Photos ===

* [http://www.undercity.org/photos/Columbia/index.htm Photos]
* [http://www.undercity.org/photos/CriticalSpaceEquip/index.htm Cyclotron]
* [http://ltvsquad.com/Locations/urbanexploration.php?ID=83 More photos]
* [http://ltvsquad.com/Missions/Tunnels/ColumbiaU/index.php More photos]
* [http://www.satanslaundromat.com/sl/archives/000503.html And more]

[[Category:Morningside Heights campus]]
[[Category:Tunnels|*]]

List of tunnels

2018-10-18T18:49:56Z

Torr: /* Mudd/Uris/Havemeyer tunnel system */

This page is a '''list of tunnels'''.

== Mudd/Uris/Havemeyer tunnel system ==

One steam tunnel system connects [[Mudd Hall]], [[Uris Hall]], [[Dodge Fitness Center]], and [[Havemeyer Hall]], and is generally considered the easiest to access. These tunnels contain old rail track that was used to transport coal for heating. They also contain the "Signature Room," where one can find many quotes and names left by previous tunnelers. As with all tunnels on campus, these contain many more secrets for students to discover. This tunnel system also used to connect to the first floor of [[Pupin Hall]], but that way was blocked in the 1990s.

Until the Summer of 2003, the first floor of Pupin was virtually untouched from the last days of the [[Manhattan Project]]. Notes and daily logs scattered dusty tables. Half-completed experiments sat in stasis, only visible to the few explorers who got in. Since 2003, the first floor has been cleaned out, and is now mostly empty. However, one of the first cyclotrons remains, though it is difficult to access.

UPDATE: Unfortunately, this tunnel system seems to have been made obsolete by the chiller plant expansion: facilities.columbia.edu/new-water-chillers-bring-energy-savings . This means there is even more risky power house goodness to explore. -BR

== Other tunnel systems ==

Another tunnel system connects [[Havemeyer Hall]], [[Math Hall]], [[Lewisohn Hall]], and the [[Miller Theater]].

A tunnel between [[Butler Library]] and [[Low Library]] is rumored to exist, but no evidence of such a tunnel has ever been found. Any entrance to this tunnel from [[Butler Library]] is well hidden or heavily locked, and the [[Low Library]] entrance would be next-to-impossible to find given that Campus Security is based on the first floor.

There is no tunnel to the [[Barnard campus]] (except that you can just walk through the subway station), and almost definitely none to [[East Campus]].

==Inaccessible tunnels==

===[[Buell Hall|Buell]] to [[Low Library|Low]]===
This passageway does exist, but it's a tiny crawlspace filled with steam pipes that are hot to the touch. It probably also contains asbestos. You can see it from the [[Kent Hall|Kent]]-[[Buell Hall|Buell]] passage, but the way to it is blocked. Don't even think about climbing over the pipes, because if you try, you'll burn yourself badly. These pipes, like all the pipes in the Buell crawlspace, don't have any sort of insulation on them - which is why it's always hot as Hades in there.

UPDATE: You can climb over the pipes, but the passage ends with a cinder-block wall after you crawl about 100 feet. Be wary that the way back out will require crawling in reverse until it opens up enough to turn around. -BR

==Unconfirmed/speculated tunnels==

*Mental Institution Foundation tunnel. Apparently, these tunnels can be found beneath the lower level of the Old Powerhouse.
*[[Butler to Low tunnel]]

== External links ==
* [http://www.columbiauniversitycampus.com/#/restricted-access/Innards-5726 Restricted Access Photos]

[[Category:Tunnels]]

List of tunnels

2018-10-18T18:49:46Z

Torr: /* Buell to Low */

This page is a '''list of tunnels'''.

== Mudd/Uris/Havemeyer tunnel system ==

One steam tunnel system connects [[Mudd Hall]], [[Uris Hall]], [[Dodge Fitness Center]], and [[Havemeyer Hall]], and is generally considered the easiest to access. These tunnels contain old rail track that was used to transport coal for heating. They also contain the "Signature Room," where one can find many quotes and names left by previous tunnelers. As with all tunnels on campus, these contain many more secrets for students to discover. This tunnel system also used to connect to the first floor of [[Pupin Hall]], but that way was blocked in the 1990s.

Until the Summer of 2003, the first floor of Pupin was virtually untouched from the last days of the [[Manhattan Project]]. Notes and daily logs scattered dusty tables. Half-completed experiments sat in stasis, only visible to the few explorers who got in. Since 2003, the first floor has been cleaned out, and is now mostly empty. However, one of the first cyclotrons remains, though it is difficult to access.

Unfortunately, this tunnel system seems to have been made obsolete by the chiller plant expansion: facilities.columbia.edu/new-water-chillers-bring-energy-savings . This means there is even more risky power house goodness to explore.

== Other tunnel systems ==

Another tunnel system connects [[Havemeyer Hall]], [[Math Hall]], [[Lewisohn Hall]], and the [[Miller Theater]].

A tunnel between [[Butler Library]] and [[Low Library]] is rumored to exist, but no evidence of such a tunnel has ever been found. Any entrance to this tunnel from [[Butler Library]] is well hidden or heavily locked, and the [[Low Library]] entrance would be next-to-impossible to find given that Campus Security is based on the first floor.

There is no tunnel to the [[Barnard campus]] (except that you can just walk through the subway station), and almost definitely none to [[East Campus]].

==Inaccessible tunnels==

===[[Buell Hall|Buell]] to [[Low Library|Low]]===
This passageway does exist, but it's a tiny crawlspace filled with steam pipes that are hot to the touch. It probably also contains asbestos. You can see it from the [[Kent Hall|Kent]]-[[Buell Hall|Buell]] passage, but the way to it is blocked. Don't even think about climbing over the pipes, because if you try, you'll burn yourself badly. These pipes, like all the pipes in the Buell crawlspace, don't have any sort of insulation on them - which is why it's always hot as Hades in there.

UPDATE: You can climb over the pipes, but the passage ends with a cinder-block wall after you crawl about 100 feet. Be wary that the way back out will require crawling in reverse until it opens up enough to turn around. -BR

==Unconfirmed/speculated tunnels==

*Mental Institution Foundation tunnel. Apparently, these tunnels can be found beneath the lower level of the Old Powerhouse.
*[[Butler to Low tunnel]]

== External links ==
* [http://www.columbiauniversitycampus.com/#/restricted-access/Innards-5726 Restricted Access Photos]

[[Category:Tunnels]]

List of tunnels

2018-10-18T18:48:07Z

Torr: /* Mudd/Uris/Havemeyer tunnel system */

This page is a '''list of tunnels'''.

== Mudd/Uris/Havemeyer tunnel system ==

One steam tunnel system connects [[Mudd Hall]], [[Uris Hall]], [[Dodge Fitness Center]], and [[Havemeyer Hall]], and is generally considered the easiest to access. These tunnels contain old rail track that was used to transport coal for heating. They also contain the "Signature Room," where one can find many quotes and names left by previous tunnelers. As with all tunnels on campus, these contain many more secrets for students to discover. This tunnel system also used to connect to the first floor of [[Pupin Hall]], but that way was blocked in the 1990s.

Until the Summer of 2003, the first floor of Pupin was virtually untouched from the last days of the [[Manhattan Project]]. Notes and daily logs scattered dusty tables. Half-completed experiments sat in stasis, only visible to the few explorers who got in. Since 2003, the first floor has been cleaned out, and is now mostly empty. However, one of the first cyclotrons remains, though it is difficult to access.

Unfortunately, this tunnel system seems to have been made obsolete by the chiller plant expansion: facilities.columbia.edu/new-water-chillers-bring-energy-savings . This means there is even more risky power house goodness to explore.

== Other tunnel systems ==

Another tunnel system connects [[Havemeyer Hall]], [[Math Hall]], [[Lewisohn Hall]], and the [[Miller Theater]].

A tunnel between [[Butler Library]] and [[Low Library]] is rumored to exist, but no evidence of such a tunnel has ever been found. Any entrance to this tunnel from [[Butler Library]] is well hidden or heavily locked, and the [[Low Library]] entrance would be next-to-impossible to find given that Campus Security is based on the first floor.

There is no tunnel to the [[Barnard campus]] (except that you can just walk through the subway station), and almost definitely none to [[East Campus]].

==Inaccessible tunnels==

===[[Buell Hall|Buell]] to [[Low Library|Low]]===
This passageway does exist, but it's a tiny crawlspace filled with steam pipes that are hot to the touch. It probably also contains asbestos. You can see it from the [[Kent Hall|Kent]]-[[Buell Hall|Buell]] passage, but the way to it is blocked. Don't even think about climbing over the pipes, because if you try, you'll burn yourself badly. These pipes, like all the pipes in the Buell crawlspace, don't have any sort of insulation on them - which is why it's always hot as Hades in there.

==Unconfirmed/speculated tunnels==

*Mental Institution Foundation tunnel. Apparently, these tunnels can be found beneath the lower level of the Old Powerhouse.
*[[Butler to Low tunnel]]

== External links ==
* [http://www.columbiauniversitycampus.com/#/restricted-access/Innards-5726 Restricted Access Photos]

[[Category:Tunnels]]

Tunnels

2018-09-21T09:28:50Z

Torr: /* Famous tunnel explorers */

[[Image:TunnelSystem.png|thumb|240px|Based on Wikipedia's [[w:Columbia University Tunnels|article on the tunnels]].]]

{{wp-also2|Columbia University tunnels}}

Columbia has an extensive '''tunnel system''' connecting most buildings on campus and acting as conduits for steam, electricity, telecommunications, and other infrastructure. The tunnels are a mysterious, foreboding place fully explored only by legendary figures in campus history. They are rumored to be where unspeakable acts of pure horror are committed.

== History ==

:''See main article at [[History of the tunnels]]''

== List of tunnels ==

:''See main article at [[List of tunnels]]''

== Maps ==

Old maps, from the 1950s, are accessible easily from the [[Columbiana]] Library. They are still roughly accurate. If you bug the reference librarian enough she might bring over the newest editions of the grounds maps. These new maps unfortunately can't be posted online due to copyright restrictions.

The map at the top of this article was created by former Columbia student [[Mike Schiraldi]] and released under the GFDL. It was created in 1999 so it's somewhat out of date, and is incomplete. The purple areas, marked "rumored," are just that; they almost certainly don't exist. As described in the map's legend, different colors are used to indicate different types of tunnel and levels of certainty:

* Green lines indicate areas that are not only known to exist but also places that the Columbia administration openly allows students and staff to be. For example, the underground connection between Hartley and Wallach halls.
* Yellow lines indicate areas that are known to exist but considered off-limits to all but Columbia's maintenance workers.
* Purple lines indicate rumored connections that have not been verified. In particular, there is almost certainly no tunnel under Broadway or along College Walk.

==Famous tunnel explorers==

* [[Benoit]] - a famous tunnel explorer who still answers questions about and leads tours of the system
* [[Ken Hechtman]] - a student whose group [[ADHOC]] wrought havoc in the tunnels in the 1980s and subsequently was expelled for stealing uranium from the [[Pupin Hall|Pupin]] basement
* "Brian" - Current CU senior who can show new students around. Message miningcu@gmail.com

==See also==

*[[Tunnelling guide]]

== External links ==

* [http://www.columbiauniversitycampus.com/#/restricted-access/Innards-5726/ Restricted Access Photographs]
* [http://www.columbiatunnels.org columbiatunnels.org] - inactive
* [http://www.columbiaspectator.com/node/11905 Forbidden Tunnels Guard CU History] - [[Columbia Spectator]] article
* [http://freethetunnels.blogspot.com/] - FREE THE TUNNELS

=== Photos ===

* [http://www.undercity.org/photos/Columbia/index.htm Photos]
* [http://www.undercity.org/photos/CriticalSpaceEquip/index.htm Cyclotron]
* [http://ltvsquad.com/Locations/urbanexploration.php?ID=83 More photos]
* [http://ltvsquad.com/Missions/Tunnels/ColumbiaU/index.php More photos]
* [http://www.satanslaundromat.com/sl/archives/000503.html And more]

[[Category:Morningside Heights campus]]
[[Category:Tunnels|*]]

Tunnels

2018-09-21T09:28:04Z

Torr: /* Famous tunnel explorers */

[[Image:TunnelSystem.png|thumb|240px|Based on Wikipedia's [[w:Columbia University Tunnels|article on the tunnels]].]]

{{wp-also2|Columbia University tunnels}}

Columbia has an extensive '''tunnel system''' connecting most buildings on campus and acting as conduits for steam, electricity, telecommunications, and other infrastructure. The tunnels are a mysterious, foreboding place fully explored only by legendary figures in campus history. They are rumored to be where unspeakable acts of pure horror are committed.

== History ==

:''See main article at [[History of the tunnels]]''

== List of tunnels ==

:''See main article at [[List of tunnels]]''

== Maps ==

Old maps, from the 1950s, are accessible easily from the [[Columbiana]] Library. They are still roughly accurate. If you bug the reference librarian enough she might bring over the newest editions of the grounds maps. These new maps unfortunately can't be posted online due to copyright restrictions.

The map at the top of this article was created by former Columbia student [[Mike Schiraldi]] and released under the GFDL. It was created in 1999 so it's somewhat out of date, and is incomplete. The purple areas, marked "rumored," are just that; they almost certainly don't exist. As described in the map's legend, different colors are used to indicate different types of tunnel and levels of certainty:

* Green lines indicate areas that are not only known to exist but also places that the Columbia administration openly allows students and staff to be. For example, the underground connection between Hartley and Wallach halls.
* Yellow lines indicate areas that are known to exist but considered off-limits to all but Columbia's maintenance workers.
* Purple lines indicate rumored connections that have not been verified. In particular, there is almost certainly no tunnel under Broadway or along College Walk.

==Famous tunnel explorers==

* [[Benoit]] - a famous tunnel explorer who still answers questions about and leads tours of the system
* [[Ken Hechtman]] - a student whose group [[ADHOC]] wrought havoc in the tunnels in the 1980s and subsequently was expelled for stealing uranium from the [[Pupin Hall|Pupin]] basement
* █████████ - Current CU senior who can show new students around. Message miningcu@gmail.com

==See also==

*[[Tunnelling guide]]

== External links ==

* [http://www.columbiauniversitycampus.com/#/restricted-access/Innards-5726/ Restricted Access Photographs]
* [http://www.columbiatunnels.org columbiatunnels.org] - inactive
* [http://www.columbiaspectator.com/node/11905 Forbidden Tunnels Guard CU History] - [[Columbia Spectator]] article
* [http://freethetunnels.blogspot.com/] - FREE THE TUNNELS

=== Photos ===

* [http://www.undercity.org/photos/Columbia/index.htm Photos]
* [http://www.undercity.org/photos/CriticalSpaceEquip/index.htm Cyclotron]
* [http://ltvsquad.com/Locations/urbanexploration.php?ID=83 More photos]
* [http://ltvsquad.com/Missions/Tunnels/ColumbiaU/index.php More photos]
* [http://www.satanslaundromat.com/sl/archives/000503.html And more]

[[Category:Morningside Heights campus]]
[[Category:Tunnels|*]]

Tunnels

2018-09-21T09:27:49Z

Torr: /* Famous tunnel explorers */

[[Image:TunnelSystem.png|thumb|240px|Based on Wikipedia's [[w:Columbia University Tunnels|article on the tunnels]].]]

{{wp-also2|Columbia University tunnels}}

Columbia has an extensive '''tunnel system''' connecting most buildings on campus and acting as conduits for steam, electricity, telecommunications, and other infrastructure. The tunnels are a mysterious, foreboding place fully explored only by legendary figures in campus history. They are rumored to be where unspeakable acts of pure horror are committed.

== History ==

:''See main article at [[History of the tunnels]]''

== List of tunnels ==

:''See main article at [[List of tunnels]]''

== Maps ==

Old maps, from the 1950s, are accessible easily from the [[Columbiana]] Library. They are still roughly accurate. If you bug the reference librarian enough she might bring over the newest editions of the grounds maps. These new maps unfortunately can't be posted online due to copyright restrictions.

The map at the top of this article was created by former Columbia student [[Mike Schiraldi]] and released under the GFDL. It was created in 1999 so it's somewhat out of date, and is incomplete. The purple areas, marked "rumored," are just that; they almost certainly don't exist. As described in the map's legend, different colors are used to indicate different types of tunnel and levels of certainty:

* Green lines indicate areas that are not only known to exist but also places that the Columbia administration openly allows students and staff to be. For example, the underground connection between Hartley and Wallach halls.
* Yellow lines indicate areas that are known to exist but considered off-limits to all but Columbia's maintenance workers.
* Purple lines indicate rumored connections that have not been verified. In particular, there is almost certainly no tunnel under Broadway or along College Walk.

==Famous tunnel explorers==

* [[Benoit]] - a famous tunnel explorer who still answers questions about and leads tours of the system
* [[Ken Hechtman]] - a student whose group [[ADHOC]] wrought havoc in the tunnels in the 1980s and subsequently was expelled for stealing uranium from the [[Pupin Hall|Pupin]] basement
* ██████████ - Current CU senior who can show new students around. Message miningcu@gmail.com

==See also==

*[[Tunnelling guide]]

== External links ==

* [http://www.columbiauniversitycampus.com/#/restricted-access/Innards-5726/ Restricted Access Photographs]
* [http://www.columbiatunnels.org columbiatunnels.org] - inactive
* [http://www.columbiaspectator.com/node/11905 Forbidden Tunnels Guard CU History] - [[Columbia Spectator]] article
* [http://freethetunnels.blogspot.com/] - FREE THE TUNNELS

=== Photos ===

* [http://www.undercity.org/photos/Columbia/index.htm Photos]
* [http://www.undercity.org/photos/CriticalSpaceEquip/index.htm Cyclotron]
* [http://ltvsquad.com/Locations/urbanexploration.php?ID=83 More photos]
* [http://ltvsquad.com/Missions/Tunnels/ColumbiaU/index.php More photos]
* [http://www.satanslaundromat.com/sl/archives/000503.html And more]

[[Category:Morningside Heights campus]]
[[Category:Tunnels|*]]

Tunnels

2018-09-21T09:27:40Z

Torr: /* Famous tunnel explorers */

[[Image:TunnelSystem.png|thumb|240px|Based on Wikipedia's [[w:Columbia University Tunnels|article on the tunnels]].]]

{{wp-also2|Columbia University tunnels}}

Columbia has an extensive '''tunnel system''' connecting most buildings on campus and acting as conduits for steam, electricity, telecommunications, and other infrastructure. The tunnels are a mysterious, foreboding place fully explored only by legendary figures in campus history. They are rumored to be where unspeakable acts of pure horror are committed.

== History ==

:''See main article at [[History of the tunnels]]''

== List of tunnels ==

:''See main article at [[List of tunnels]]''

== Maps ==

Old maps, from the 1950s, are accessible easily from the [[Columbiana]] Library. They are still roughly accurate. If you bug the reference librarian enough she might bring over the newest editions of the grounds maps. These new maps unfortunately can't be posted online due to copyright restrictions.

The map at the top of this article was created by former Columbia student [[Mike Schiraldi]] and released under the GFDL. It was created in 1999 so it's somewhat out of date, and is incomplete. The purple areas, marked "rumored," are just that; they almost certainly don't exist. As described in the map's legend, different colors are used to indicate different types of tunnel and levels of certainty:

* Green lines indicate areas that are not only known to exist but also places that the Columbia administration openly allows students and staff to be. For example, the underground connection between Hartley and Wallach halls.
* Yellow lines indicate areas that are known to exist but considered off-limits to all but Columbia's maintenance workers.
* Purple lines indicate rumored connections that have not been verified. In particular, there is almost certainly no tunnel under Broadway or along College Walk.

==Famous tunnel explorers==

* [[Benoit]] - a famous tunnel explorer who still answers questions about and leads tours of the system
* [[Ken Hechtman]] - a student whose group [[ADHOC]] wrought havoc in the tunnels in the 1980s and subsequently was expelled for stealing uranium from the [[Pupin Hall|Pupin]] basement
* ██████████████ - Current CU senior who can show new students around. Message miningcu@gmail.com

==See also==

*[[Tunnelling guide]]

== External links ==

* [http://www.columbiauniversitycampus.com/#/restricted-access/Innards-5726/ Restricted Access Photographs]
* [http://www.columbiatunnels.org columbiatunnels.org] - inactive
* [http://www.columbiaspectator.com/node/11905 Forbidden Tunnels Guard CU History] - [[Columbia Spectator]] article
* [http://freethetunnels.blogspot.com/] - FREE THE TUNNELS

=== Photos ===

* [http://www.undercity.org/photos/Columbia/index.htm Photos]
* [http://www.undercity.org/photos/CriticalSpaceEquip/index.htm Cyclotron]
* [http://ltvsquad.com/Locations/urbanexploration.php?ID=83 More photos]
* [http://ltvsquad.com/Missions/Tunnels/ColumbiaU/index.php More photos]
* [http://www.satanslaundromat.com/sl/archives/000503.html And more]

[[Category:Morningside Heights campus]]
[[Category:Tunnels|*]]

Tunnels

2018-09-21T09:26:41Z

Torr: /* Famous tunnel explorers */

[[Image:TunnelSystem.png|thumb|240px|Based on Wikipedia's [[w:Columbia University Tunnels|article on the tunnels]].]]

{{wp-also2|Columbia University tunnels}}

Columbia has an extensive '''tunnel system''' connecting most buildings on campus and acting as conduits for steam, electricity, telecommunications, and other infrastructure. The tunnels are a mysterious, foreboding place fully explored only by legendary figures in campus history. They are rumored to be where unspeakable acts of pure horror are committed.

== History ==

:''See main article at [[History of the tunnels]]''

== List of tunnels ==

:''See main article at [[List of tunnels]]''

== Maps ==

Old maps, from the 1950s, are accessible easily from the [[Columbiana]] Library. They are still roughly accurate. If you bug the reference librarian enough she might bring over the newest editions of the grounds maps. These new maps unfortunately can't be posted online due to copyright restrictions.

The map at the top of this article was created by former Columbia student [[Mike Schiraldi]] and released under the GFDL. It was created in 1999 so it's somewhat out of date, and is incomplete. The purple areas, marked "rumored," are just that; they almost certainly don't exist. As described in the map's legend, different colors are used to indicate different types of tunnel and levels of certainty:

* Green lines indicate areas that are not only known to exist but also places that the Columbia administration openly allows students and staff to be. For example, the underground connection between Hartley and Wallach halls.
* Yellow lines indicate areas that are known to exist but considered off-limits to all but Columbia's maintenance workers.
* Purple lines indicate rumored connections that have not been verified. In particular, there is almost certainly no tunnel under Broadway or along College Walk.

==Famous tunnel explorers==

* [[Benoit]] - a famous tunnel explorer who still answers questions about and leads tours of the system
* [[Ken Hechtman]] - a student whose group [[ADHOC]] wrought havoc in the tunnels in the 1980s and subsequently was expelled for stealing uranium from the [[Pupin Hall|Pupin]] basement
* :::::::::::::::: - Current CU senior who can show new students around. Message miningcu@gmail.com

==See also==

*[[Tunnelling guide]]

== External links ==

* [http://www.columbiauniversitycampus.com/#/restricted-access/Innards-5726/ Restricted Access Photographs]
* [http://www.columbiatunnels.org columbiatunnels.org] - inactive
* [http://www.columbiaspectator.com/node/11905 Forbidden Tunnels Guard CU History] - [[Columbia Spectator]] article
* [http://freethetunnels.blogspot.com/] - FREE THE TUNNELS

=== Photos ===

* [http://www.undercity.org/photos/Columbia/index.htm Photos]
* [http://www.undercity.org/photos/CriticalSpaceEquip/index.htm Cyclotron]
* [http://ltvsquad.com/Locations/urbanexploration.php?ID=83 More photos]
* [http://ltvsquad.com/Missions/Tunnels/ColumbiaU/index.php More photos]
* [http://www.satanslaundromat.com/sl/archives/000503.html And more]

[[Category:Morningside Heights campus]]
[[Category:Tunnels|*]]

Tunnels

2018-09-21T08:56:48Z

Torr: /* Famous tunnel explorers */

[[Image:TunnelSystem.png|thumb|240px|Based on Wikipedia's [[w:Columbia University Tunnels|article on the tunnels]].]]

{{wp-also2|Columbia University tunnels}}

Columbia has an extensive '''tunnel system''' connecting most buildings on campus and acting as conduits for steam, electricity, telecommunications, and other infrastructure. The tunnels are a mysterious, foreboding place fully explored only by legendary figures in campus history. They are rumored to be where unspeakable acts of pure horror are committed.

== History ==

:''See main article at [[History of the tunnels]]''

== List of tunnels ==

:''See main article at [[List of tunnels]]''

== Maps ==

Old maps, from the 1950s, are accessible easily from the [[Columbiana]] Library. They are still roughly accurate. If you bug the reference librarian enough she might bring over the newest editions of the grounds maps. These new maps unfortunately can't be posted online due to copyright restrictions.

The map at the top of this article was created by former Columbia student [[Mike Schiraldi]] and released under the GFDL. It was created in 1999 so it's somewhat out of date, and is incomplete. The purple areas, marked "rumored," are just that; they almost certainly don't exist. As described in the map's legend, different colors are used to indicate different types of tunnel and levels of certainty:

* Green lines indicate areas that are not only known to exist but also places that the Columbia administration openly allows students and staff to be. For example, the underground connection between Hartley and Wallach halls.
* Yellow lines indicate areas that are known to exist but considered off-limits to all but Columbia's maintenance workers.
* Purple lines indicate rumored connections that have not been verified. In particular, there is almost certainly no tunnel under Broadway or along College Walk.

==Famous tunnel explorers==

* [[Benoit]] - a famous tunnel explorer who still answers questions about and leads tours of the system
* [[Ken Hechtman]] - a student whose group [[ADHOC]] wrought havoc in the tunnels in the 1980s and subsequently was expelled for stealing uranium from the [[Pupin Hall|Pupin]] basement
* ********** - Current CU senior who can show new students around. Message miningcu@gmail.com

==See also==

*[[Tunnelling guide]]

== External links ==

* [http://www.columbiauniversitycampus.com/#/restricted-access/Innards-5726/ Restricted Access Photographs]
* [http://www.columbiatunnels.org columbiatunnels.org] - inactive
* [http://www.columbiaspectator.com/node/11905 Forbidden Tunnels Guard CU History] - [[Columbia Spectator]] article
* [http://freethetunnels.blogspot.com/] - FREE THE TUNNELS

=== Photos ===

* [http://www.undercity.org/photos/Columbia/index.htm Photos]
* [http://www.undercity.org/photos/CriticalSpaceEquip/index.htm Cyclotron]
* [http://ltvsquad.com/Locations/urbanexploration.php?ID=83 More photos]
* [http://ltvsquad.com/Missions/Tunnels/ColumbiaU/index.php More photos]
* [http://www.satanslaundromat.com/sl/archives/000503.html And more]

[[Category:Morningside Heights campus]]
[[Category:Tunnels|*]]

Tunnels

2018-09-21T08:56:17Z

Torr: /* Famous tunnel explorers */

[[Image:TunnelSystem.png|thumb|240px|Based on Wikipedia's [[w:Columbia University Tunnels|article on the tunnels]].]]

{{wp-also2|Columbia University tunnels}}

Columbia has an extensive '''tunnel system''' connecting most buildings on campus and acting as conduits for steam, electricity, telecommunications, and other infrastructure. The tunnels are a mysterious, foreboding place fully explored only by legendary figures in campus history. They are rumored to be where unspeakable acts of pure horror are committed.

== History ==

:''See main article at [[History of the tunnels]]''

== List of tunnels ==

:''See main article at [[List of tunnels]]''

== Maps ==

Old maps, from the 1950s, are accessible easily from the [[Columbiana]] Library. They are still roughly accurate. If you bug the reference librarian enough she might bring over the newest editions of the grounds maps. These new maps unfortunately can't be posted online due to copyright restrictions.

The map at the top of this article was created by former Columbia student [[Mike Schiraldi]] and released under the GFDL. It was created in 1999 so it's somewhat out of date, and is incomplete. The purple areas, marked "rumored," are just that; they almost certainly don't exist. As described in the map's legend, different colors are used to indicate different types of tunnel and levels of certainty:

* Green lines indicate areas that are not only known to exist but also places that the Columbia administration openly allows students and staff to be. For example, the underground connection between Hartley and Wallach halls.
* Yellow lines indicate areas that are known to exist but considered off-limits to all but Columbia's maintenance workers.
* Purple lines indicate rumored connections that have not been verified. In particular, there is almost certainly no tunnel under Broadway or along College Walk.

==Famous tunnel explorers==

* [[Benoit]] - a famous tunnel explorer who still answers questions about and leads tours of the system
* [[Ken Hechtman]] - a student whose group [[ADHOC]] wrought havoc in the tunnels in the 1980s and subsequently was expelled for stealing uranium from the [[Pupin Hall|Pupin]] basement
* [[********]] - Current CU senior who can show new students around. Message miningcu@gmail.com

==See also==

*[[Tunnelling guide]]

== External links ==

* [http://www.columbiauniversitycampus.com/#/restricted-access/Innards-5726/ Restricted Access Photographs]
* [http://www.columbiatunnels.org columbiatunnels.org] - inactive
* [http://www.columbiaspectator.com/node/11905 Forbidden Tunnels Guard CU History] - [[Columbia Spectator]] article
* [http://freethetunnels.blogspot.com/] - FREE THE TUNNELS

=== Photos ===

* [http://www.undercity.org/photos/Columbia/index.htm Photos]
* [http://www.undercity.org/photos/CriticalSpaceEquip/index.htm Cyclotron]
* [http://ltvsquad.com/Locations/urbanexploration.php?ID=83 More photos]
* [http://ltvsquad.com/Missions/Tunnels/ColumbiaU/index.php More photos]
* [http://www.satanslaundromat.com/sl/archives/000503.html And more]

[[Category:Morningside Heights campus]]
[[Category:Tunnels|*]]