Camp Fistclench was a prototype for Camp Century
“In 1955, Camp Fistclench was constructed 220 miles east of Thule, adjacent to the AC&W site, to test and evaluate methods of ice cap construction and to provide a summer base camp for research and development projects.” from
Greenland Operations of the 17th Tactical Airlift Squadron and CRREL by Steven J. Mock, March 1973
See also: http://en.wikipedia.org/wiki/Camp_Fistclench
and:
F. Elmer (1965). “Technical Report 174: Camp Century Evolution of Concept and History of Design Construction and Performance”