This image from NASA's Mars Odyssey shows part of a crater located north of Hecates Tholus. The radial grooves in the ejecta blanket are still visible around the crater rim. https://photojournal.jpl.nasa.gov/catalog/PIA22496
This image from NASA's Mars Odyssey shows part of a crater located north of Hecates Tholus. The radial grooves in the ejecta blanket are still visible around the crater rim. https://photojournal.jpl.nasa.gov/catalog/PIA22496