The Pima Air & Space Museum offers exclusive bus tours of the 309th Aerospace Maintenance and Regeneration Center (AMARG), also known as the "Boneyard." The facility is located adjacent to the Museum at Davis-Monthan Air Force Base. Seats are available on a "first come first serve" basis. It is recommended that you purchase your tickets when the museum opens at 9:00 AM. The tour bus boards at the Museum entrance. https://www.aerialsphere.com/spheres/arizona/tucson/boneyard/1/. Security Concerns: Due to increased security concerns, the Air Force prohibits the carrying of firearms, weapons, illegal substances, backpacks, camera cases, and other non-essential items on the AMARG tour. Please leave these items in your car. Carry-on items may include a small camera without the case, and a small purse or fanny/belt pack. All items will be visually inspected before boarding the bus. Government issued photo identification (Such as a driver's license, military ID or passport) is required for all persons 16 years of age and older. Tours are given Monday through Friday (excluding federal holidays) and last approximately one hour and thirty minutes. Departure times are seasonal. Ticket price $10/person. Visit http://www.pimaair.org/visit/plan-your-visit or call 520.574.0462 for more info and additional security procedures in effect.