U.S. Air Force Col. Richard Gibbs, 377th Air Base Wing commander and Kelly Harrington, make a rubbing of the B-29 Marker Dedication memorial at Kirtland Air Force Base, April 11, 2019. 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)