Calypso Rupes (Mercury)
Named after the French; originally commissioned in 1942 as a minesweeper, Calypso was purchased by Jacques-Yves Cousteau and used for oceanographic studies in 1950-1996.
A rupes is a scarp. On Mercury they are named after ships of discovery or scientific expeditions.
Image Source. Marker locations are approximate and may not always appear to align with image on map.
Calypso Rupes
19.53° N 43.52° E