Juventae Chasma

On the north side of Mars' great equatorial rift Valles Marineris lies a large depression called Juventae Chasma. The chasma stretches for 180 kilometers (110 miles) east-west and 250 km (155 miles) north-south. Most of its floor lies 5km (3 miles) or more below the surrounding surface of Lunae Planum. The large outflow channel Maja Valles originates at the northern end of Juventae Chasma. Sand dunes cover a large protion of the floor of Juventae Chasma, visible in the central part of this VIS image.