Wikipedia
Cruls (Martian crater)
Cruls is an impact crater in the Eridania quadrangle on Mars at 42.91° S and 163.03° E. and is 87.89 km in diameter. Its name was assigned in 1973 by the International Astronomical Union, in honor of Brazilian astronomer Luis Cruls. Evidence of previous glacial activity is evident in images.
Glacial Flow Features in Cruls Crater.HiRISE.jpg | Close-up of Glacial Flow Features in Cruls Crater, HiRISE, Mars Reconnaissance Orbiter Wikicruls.jpg|Cruls Crater, as seen by CTX camera (on Mars Reconnaissance Orbiter). Arrows indicate old glaciers. WikicrulsESP 034057 1375flows.jpg|Old glaciers in Cruls Crater, as seen by HiRISE under HiWish program.