… relief and elevation and recording its political and environmental geography in 1962, 1972, 1973-76, 1990, and … six or more bodies; 125 sites, 1,000 or more; 27 sites, 10,000 bodies or more; and 7 sites, 30-70,000 each); in an … with the assistance and expertise of the Center for Earth Observation ( www.yale.edu/ceo ) at the Yale Institute …