The 309th Aerospace Maintenance and Regeneration Group, also called The Boneyard, at Tucson is a repository of out-of-service aircrafts. There are more than 4,400 aircrafts on the site.

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- Title: TerraSAR-X Acquisition of Tucson, Arizona, USA
- Location: Pima County
- Image Type: Radar
- Resolution: 1m - 5m
- Date: 12/23/2010
- Copyright: DLR e.V. 2012, Distribution Airbus Defence and Space GmbH
- Imaging Mode: High Resolution SpotLight
- Polarization Mode: HH
- Distribution: This image is for personal use only. It cannot be sold or distributed to any third party.