Candor Chasma's Rim

THEMIS has taken some great pictures of Valles Marineris, the largest canyon in the solar system. If this canyon were on Earth, it would stretch from New York to Los Angeles. Image of the Day toured some of the canyons that make up this vast system.
This image shows Candor Chasma's northern rim. Just below the canyon wall is debris material that once formed part of the canyon wall. The bottom part of the image shows eroded layered rock surfaces.