This crater is oddly nested in a shallow depression. The crater is near the edge of a (mud?) flow boundary. Maybe the flow surrounded the crater, and then partially drained. This observation lets us take a more detailed look at the relations of these interesting features.

ID: ESP_042913_1950
date: 22 September 2015
altitude: 279 km

https://uahirise.org/hipod/ESP_042913_1950
NASA/JPL-Caltech/UArizona
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