1) Deep ravine 1) Ravine 
• (n.) A ravine caused by heavy rains or a watercourse.
(from the article `Mexico`) ...feet (2,400–2,700 metres) and extends roughly 700 miles (1,100 km) from north to south. It has been highly incised by westward-flowing streams ... ...above 10,000 feet. From the east the mountains present relatively slight but broken relief; from the west they appear as formidable escarpments ... [...
Barranca is a term used to describe a dry pitch, ravine or gully which is filled with rocks.
Bar·ran'ca noun [ Spanish ] A ravine caused by heavy rains or a watercourse. [ Texas & N. Mex.]
HMS Barranca was a British Barricade Class boom defence vessel of 730 tons displacement launched in 1938. HMS Barranca had a top speed of 11.75 knots and carried a complement of 32. She was armed with a 3-inch anti-aircraft gun.
A steep-sided gully formed by erosion, similar to a donga.