Rock shelter
Shallow cave-like opening at the base of a bluff or cliff / From Wikipedia, the free encyclopedia
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"Abri" redirects here. For other uses, see Abri (disambiguation).
This article is about the geological formation. For landslip protection, see Rock shed.
For rock face with a slope of more than 90°, see Overhang (rock formation).
A rock shelter (also rockhouse, crepuscular cave, bluff shelter, or abri) is a shallow cave-like opening at the base of a bluff or cliff. In contrast to solutional caves (karst), which are often many miles long or wide, rock shelters are almost always modest in size and extent.
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