Fort Apocalypse, created in 1982
This idea came to me in a dream the summer before I saw Choplitfer. If you remember, 1981 was the failed helicopter mission to rescue people from the Iranian US embassy during the last days of the Carter Administration. Probably a connection, and I suspect Dan Gorlin had the same dream. :)

Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 2.5 License.

Download it here.