English: The annotated version of the mosaic indicates the location of four prominent escarpments, or scarps (long, steep slopes), along Jezero Crater's river delta. The images were taken by the Mastcam-Z instrument aboard NASA’s Perseverance rover on April 17, 2021.

This mosaic was taken by the Mastcam-Z instrument aboard NASA’s Perseverance rover on Apr. 17, 2021. The delta formed billions of years ago from sediment that an ancient river carried to the mouth of the lake that once existed in the crater. The images that stitched together to create the mosaic were taken from a distance of about 1.2 miles (2.2 kilometers).

The Mastcam-Z investigation is led and operated by Arizona State University in Tempe, working in collaboration with Malin Space Science Systems in San Diego, California, on the design, fabrication, testing, and operation of the cameras, and in collaboration with the Neils Bohr Institute of the University of Copenhagen on the design, fabrication, and testing of the calibration targets.