The Pima Air and Space Museum runs public tours of AMARC [(Aerospace Maintenance and Regeneration Center)], but those tours only give a glimpse of what happens. The tour bus doesn't pass the Wing Shop or the area where old F-4s are being turned into drones to be shot down in military exercises, or becoming artificial reefs to benefit sea life. You also won't see the retired Titan missiles. However, the tours do pass an area referred to as "Celebrity Row," which consists of a fine collection of A-10s, F-4s, C-5s, C-141s, B-1s, B-52s, F-4s and many other aircraft and spare parts.
You may even catch a glimpse of some celebrity aircraft that have been used in movies. The tour guides love to talk about those.
Link. The article also makes the case for refraining from calling it a boneyard. But that's not gonna happen.