Water and Lava in Athabasca Valles

The outflow channel system Athabasca Valles, which rises in the Cerberus Fossae can bee seen to the west of the image shown here. Presumably, the Cerberus Fossae fissures have ruptured the Martian crust millions of years ago to a certain depth, to be able to discharge lava from a volcanic source as well as groundwater.