Deal, Dwight. 1962. Cavern Formation in the Black Hills of South Dakota, With Special Reference to Jewel Cave. National Speleological Society News 17. p. 117-120.
The caves and cavernous rocks of the Black Hills of South Dakota have a more complex geologic history than any other caves or cave region known to the author. Although the majority of the field work for this paper was done in Jewel Cave, all the other developed caves in the region were visited. It is thought that the conclusions reached are regionally This report documents the sequence of events affecting the development of caves in the Black Hills.