How to use
NSS Library Holdings
The Library is the largest and most diverse collection of literature about caves, karst and caving. The collection is very broad and contains documents produced by the NSS and its internal organizations. It also includes books, periodicals, and literature published by independent publishing companies, individual authors, and other speleological organizations both in the US and other countries.
The diverse reference collection can be broken down as follows:
Books (over 4,000 American and foreign publications)