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Based on Wikipedia's article on the tunnels.
See also Wikipedia's article about "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.


See main article at History of the tunnels

List of tunnels

See main article at List of tunnels


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 It was created in 1999 so it's somewhat out of date, and is incomplete.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

See also

External links