HiPOD: Hills and Rings

This image shows a group of hills as well as ridges that form circular patterns that resemble rings. The origin of these features is not fully understood and may be related to the eruption of magma or mud, or alternatively due to salt rising to the surface.

https://uahirise.org/hipod/ESP_082054_1730
NASA/JPL-Caltech/UArizona
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