A Hogback is a narrow, sharp-crested ridge formed by the differential erosion of steeply tilted rock layers. Both sides of the ridge have nearly equal, steep slopes. They are commonly found on the flanks of large-scale folds or domes, where resistant rock layers (like sandstone) stand out against softer surrounding rocks. ANSWER: (B) A ridge with steep slopes on both sides.
The term ‘Hogback’ refers to: (A) A type of volcanic crater. (B) A ridge with steep slopes on both sides. (C) A deep river valley in a plateau. (D) A submerged mountain peak.
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Geographically, a Hogback is a variation of a “Cuesta.” While a Cuesta has one gentle slope and one steep escarpment, a Hogback occurs when the rock strata are tilted at an angle greater than 40 degrees, resulting in symmetrical, steep slopes. This landform resembles the bristled back of a hog, hence the name. They are significant in structural geography as they indicate areas of intense crustal tilting. Famous examples can be seen along the Front Range of the Rocky Mountains, where these “tilted ribs” of rock provide a clear visual record of ancient tectonic upheaval.