South Pole-Aitken Basin, the largest and deepest impact basin in the solar system, is likely to be one of the primary targets for lunar rovers. This view, which is centered on the basin, consists of color-coded topography overlaid on a shaded relief representation of the Moon. Purple and blue are low, and orange and red are high. The basin is up to 8 miles (13 kilometers) deep, with an average depth of about 6 miles (10 kilometers). Rovers may find volcanic evidence in the basin that could help unravel the Moon's thermal evolution.
Clementine Science Group, Lunar and Planetary Institute