From Custer, take Highway 16 west to Jewel Cave National Monument, the second-longest cave in the world, named for the jewel-like calcite crystals that line its passages.
Head east back to Custer and on to America’s Shrine of Democracy, Mount Rushmore National Memorial.
On the way to Rapid City, via Highway 16, evening meals and entertainment can include dinner in Keystone, a chuckwagon supper and show, or the Mount Rushmore lighting ceremony. Rapid City's choices of attractions include a drive-through wildlife park, a road-side stop featuring one of the world's largest collections of reptiles, Black Hills Gold jewelry manufacturing and Native American attractions. Overnight in Rapid City.