The B-29 Marker Dedication memorial honored 13 Airmen that died in the Silverplate B-29 Superfortress plane crash on April 11, 1950. Members of the Rapid Engineers Deployable Heavy Operational Repair Squadron (REDHORSE) poured over 10,000 pounds of cement and cut stones gathered from the Monzano foothills, where the plane crashed to build the memorial. (U.S. Air Force photo by Airman 1st Class Austin J. Prisbrey)