CORYDON (AP) — Visitors to a southern Indiana cave this summer could see bones of animals up to 50,000 years old in what experts say is one of the best-preserved collections of Ice Age remains in the state.

The bones were found in 2010 by a group of cavers in a remote section of the Binkley Cave system in Harrison County. Remains of a bear, a bison, an owl, snakes and peccaries were found.

Indiana State Museum curator Ron Richards tells the Courier-Journal in Louisville, Ky., that the cave could contain up to 200 skeletons of the ancient pig. That would make the site one of the nation’s best peccary caves.

Owner Gary Roberson plans to open the site as Indiana Caverns and offer public tours starting in late May.