Map of Greater Angkor including major temple sites and features; (Inset Top Left) regional view; (Inset Bottom Left) detail of Angkor Wat temple. Map of Greater Angkor including major temple sites and features; (Inset Top Left) regional view; (Inset Bottom Left) detail of Angkor Wat temple. Data courtesy of National Aeronautics and Space Administration Shuttle Radar Topography Mission (NASA-SRTM) and the Japanese International Cooperation Agency (JICA), Damian Evans, and Christophe Pottier. Alison K. Carter et al. PNAS doi:10.1073/pnas.1821879116 ©2019 by National Academy of Sciences