Intersecting the mountains are numerous ravines and passes.
The terrain was rough, covered with brush choked ravines and sharp granite bluffs.
At some points the rugged cliffs, furrowed by deep ravines, approach close to the sea; elsewhere the hills leave a considerable maritime plain between their base and the shore line.
Verneau discovered in the ravines of Las Balos some genuine Libyan inscriptions.
The face is scored with ravines, a particularly deep cleft, known as The Gorge, affording the shortest means of access to the summit.