What is another word for rock shelter?
Pronunciation: [ɹˈɒk ʃˈɛltə] (IPA) 
A rock shelter, also known as a rock overhang or a rock alcove, is a natural or man-made alcove formed by overhanging rocks. It is a common type of shelter that provides protection from the elements and was used by early humans for shelter. Other synonyms for rock shelter include cave, grotto, cavern, fissure, crevasse, and recess. The term "cave" is often used interchangeably with rock shelter, but a cave is typically deeper and larger than a rock shelter. A grotto is a small hidden cave or shrine, while a cavern refers to a large underground chamber. Fissure, crevasse, and recess all refer to narrow openings or crevices in rocks that can provide shelter.
