Since 1946, part of Davis-Monthan Air Force Base in Tucson has served as an aircraft storage and preservation center for the U.S. military. Currently, the 309th Aerospace Maintenance and Regeneration Group has about 4,400 aircraft at the "boneyard."
At the facility, some aircraft are preserved for future use while others are kept for spare parts. Excess aircraft are sold off whole or in parts.
Here are photos from the Los Angeles Times archives.