https://science.nasa.gov/photojournal/partially-exhumed-crater-in-northern-terra-meridiani-mosaic-of-m04-01289-e17-01676-and-m21-01646/
Partially-Exhumed Crater in Northern Terra Meridiani: Mosaic of M04-01289, E17-01676, and M21-01646...
Aug 7, 2002 - This image from NASA's Mars Global Surveyor shows a circular feature in northern Terra Meridiani on Mars.