Fitzsimons Army Hospital, also known as Fitzsimons General Hospital, renamed Fitzsimons Army Medical Center in 1974, and Fitzsimons Building in 2018 was a U.S. Army facility located on 577 acre in Aurora, Colorado. The facility opened in 1918 and closed in 1996. The grounds were then redeveloped for civilian use as the Anschutz Medical Campus and the Fitzsimons Innovation Community.

History