Field data collection to support analysis of TM data was accomplished from June 22 to August 28th. Color infrared aerial photography acquired by a U2 on June 12, 1985 was used to locate and identify several vegetation communities. Forty sites where the USFS has collected long term ground cover were located in the field, delineated on aerial photos and ground photos of current conditions taken.
United States, National Aeronautics and Space Administration, "Biogeochemical Processes in Sagebrush Ecosystems: Interactions with Terrain" (1985). Plants. Paper 7.