Concentric Rims

This image captured by NASA 2001 Mars Odyssey spacecraft shows an unnamed crater near Acheron Fossae. The structure of this crater includes a central pit and several concentric rims. Radial grooves can be seen on the ejecta blanket surrounding the crater.

Orbit Number: 61879 Latitude: 36.8829 Longitude: 232.325 Instrument: VIS Captured: 2015-11-25 21:21

http://photojournal.jpl.nasa.gov/catalog/PIA20240