Camp Navajo was originally opened in 1942 in Bellemont, Arizona. It was originally designated Navajo Ordnance Depot, and its primary use was the storage of ammunition used in the Pacific Theater of World War II. It was renamed Navajo Army Depot in 1965, changed to Navajo Depot Activity in 1982, then changed in 1993 to its current name. In 1993 the Department of Defense transferred all ammunition activities to Hawthorne Army Ammunition Plant in Nevada. Following the transfer Camp Navajo was shifted to the Arizona Army National Guard.
Camp Navajo is a munitions storage and regional training site operated by the Arizona Army National Guard.
Units located on base include:
- HHC, Camp Navajo
- 362nd Ordnance Company (EOD)
- 819th Engineer Company (Sapper)
- 856th Military Police Company
- 1404 Transportation Company
- 194th Engineer Detachment (Firefighting Team)
Camp Navajo is also an active munitions storage site, supporting numerous civilian and military customers. The camp is an inspectable site under the Strategic Arms Reduction Treaty (START).