Topographic Slopes of the Moon’s South Polar Ridge

This map is based on data released by the Lunar Reconnaissance Orbiter Lunar Orbiter Laser Altimeter (LOLA). The map is centered between de Gerlache and Shackleton craters and shows slopes derived from the LOLA 20-m elevation product (NASA Goddard Space Flight Center; Smith et al., 2010; Smith et al., 2017) using Horn’s formula binned into seven slope ranges and assigned color values. The slope data are overlain on a derived hillshade with solar azimuth 45°W and solar elevation 45°. Polar stereographic projection is used with scale true at the pole. Feature names are included on the map