Echus Chasma separates the Tharsis region from Lunae Planum. This image from NASA 2001 Mars Odyssey shows volcanic flow materials from Tharsis within the chasma.
Echus Chasma separates the Tharsis region from Lunae Planum. This image from NASA 2001 Mars Odyssey shows volcanic flow materials from Tharsis within the chasma.