Wildlife is abundant. No listings currently available. No listings currently available. Speleothems range in color from dark brown to milky white. Temperature is 56 to 58 degrees Fahrenheit.
Camping is available at a number of campgrounds in the Keystone area.
Temperature is 47 degrees Fahrenheit. Camping in Black Hills National Forest, Custer State Park, Wind Cave National Monument and at commercial campgrounds in the Custer area. The 110-foot long Petrified Fish Crevasse is studded with fossils of prehistoric marine life. Temperature is 45 to 50 degrees Fahrenheit. It is among the world's longest caves with over 70 miles of passageways.