A circular depression (700 m diameter) sits atop of a circular mound 3.7 km in diameter. It is either a perfectly placed impact crater on the hill's summit, or a volcanic vent. LROC NAC M181173832LR [NASA/GSFC/Arizona State University].
LROC oblique view of the giant scarp (cliff) Rupes Cauchy that cuts across 200 km of Mare Tranquillitatis. The scarp is 300 meters tall and Cauchy B crater is 6 km in diameter [NASA/GSFC/Arizona State University].