The valley is narrow at both ends and widens to a maximum width of about 10 km along the middle stretch.
[1] The valley floor is a flat, lava-flooded surface that is bisected by a slender, broken, cleft-like rille.
The center rille is a challenging target for telescope observation from the Earth and described as, "notoriously hard to spot.
The more rugged edges of the valley lie at the narrow west-southwest end that cuts through the mountain range.
[4] However, the valley could have been formed by stress fractures due to expansion of the mantle or contraction after solidification of regolith.