HiRISE 3D: A Rimless Crater with Gullies
This observation targets a rimless crater located within a large bedrock plain. This crater is unusual because nearby craters in roughly the same degradation state still possess raised rims.
https://www.uahirise.org/anaglyph/ESP_068186_1445_ESP_073659_1445_RED
NASA/JPL-Caltech/UArizona