Lyot Crater Dunes

This VIS image shows part of Lyot Crater, including a large field of sand dunes on the crater floor. Lyot Crater is located in Vastitas Borealis, part of the northern hemisphere lowlands. This complex crater is 236 km across (146 miles). Craters that contain two rings - one inside the other - are variously called peak ring craters or double ring basins. This morphology can develop in craters larger than 100 km across. This dunes in this image are found within the inner ring of the crater.