Fresh impact crater morphology can be messy! NAC M189978900LR, image width 708 m [NASA/GSFC/Arizona State University].

Blocks litter the interior floor of an impact crater. NAC M187357438LR, image width 1.81 km [NASA/GSFC/Arizona State University].

Boulders >1 m across, and a few trails, surround the base of a mountain in the Schrödinger central peak ring. Boulder in lower left is ~55 m across, NAC M187340587LR, image width 732 m, mountain base is beyond the frame to the lower left [NASA/GSFC/Arizona State University].

Evidence of erosion and mass-wasting abound in lunar craters! Crater rim at the bottom of the image, crater floor at upper left, NAC M18731958LR, image width ~810 m [NASA/GSFC/Arizona State University].