From High to Low

Today's VIS image is located on the margin of the Terra Sabaea highlands and the Nilosyrtis Mensae lowlands. The drop off is very steep - about 18,000 ft. This "edge" circles the northern hemisphere of Mars and is called the crustal dichotomy. The process that created this dichotomy is unknown. In the transition region, the highlands break up into mesas and valleys, like those seen in this image. Orbit Number: 77302 Latitude: 34.8294 Longitude: 59.9418 Instrument: VIS Captured: 2019-05-19 08:38 https://photojournal.jpl.nasa.gov/catalog/PIA23282