Moon: South East Region

The heavily cratered southern highlands extend into the South Eastern Region. A 480 km cliff-like feature, the Altai Scarp, punctuates the rugged landscape. It is an outer wall of the Mare Nectaris Impact. A second unusual break in the crater field is the Rheita Valley, a broad channel scooped by a secondary impact from a colossal mare-forming impact. Noteworthy craters include the flooded Fracastorius, and Piccolomini with its large central mountain massif.
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