This image from NASA 2001 Mars Odyssey spacecraft shows Lonar Crater. This is a fairly pristine crater, with a steep slope on the interior of the rim and little to no deposition of material on the floor.
This image from NASA 2001 Mars Odyssey spacecraft shows Lonar Crater. This is a fairly pristine crater, with a steep slope on the interior of the rim and little to no deposition of material on the floor.