The Borenore Caves, contained within the Borenore Karst Conservation Reserve, are a series of limestone caves that are located in the Central West region of New South Wales, Australia. The caves are renown for their karst qualities, namely the numerous fossils from a long-lived reef complex from the Silurian era. Fossils include corals, crinoids, brachiopods, gastropods, pentamerids, colonial tryplasmids and trilobites.