The Cave Research Foundation (CRF) is an American private, non-profit group dedicated to the exploration, research, and conservation of caves. The group arose in the early 1950s from the exploration efforts at Floyd Collins Crystal Cave, now within Mammoth Cave National Park. Its stated goals were to: to promote exploration and documentation of caves and karst areas, initiate and support cave and karst research, aid in cave conservation and protection, and to assist with the interpretation of caves and karst to the public.
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