Wrecked formation with irregular shape.
Pretty steep slopes supporting Lyell A to the North-West and Proclus
A to the East.
Pretty high walls with damaged part to the West.
Flat floor communicating with Mare Tranquillitatis to the West.
Dimension: 32x32Km / 19x19Mi
Height/Wide ratio: Unknown height. Impossible calculation.
Interest : Very interesting formation
Observation period: 5 days after New Moon or 4 days after Full Moon
Minimal Instrument: 50 mm refractor