U.S. Route 16A The route passes through Keystone, South Dakota; Mount Rushmore National Memorial; The Norbeck Wildlife Management Area and Black Elk Wilderness within the Black Hills National Forest; and Custer State Park (including State Game Lodge and Legion Lake); before rejoining the parent highway. US 16A is famous for its scenic, one-lane tunnels aligned to frame the faces on Mount Rushmore, its "pigtail bridges", and its sections of divided highway but with single (and narrow) lanes on each roadway. It is the only route which can be used to drive through Custer State Park without having to pay an entrance fee for
Mount Rushmore in popular culture operates as the Hotel Alex Johnson. The "North by Northwest" appearance has been parodied in several venues. In "North by North Quahog", a 2005 episode of the animated series "Family Guy", Mount Rushmore's forested plateau was the location of the villain's home, and characters Peter and Lois are chased down the monument by Mel Gibson. In "Richie Rich", the Rich family's imitation of Mount Rushmore becomes the setting for the film's finale, echoing the finale of "North by Northwest". Alan Weisman, in his book "The World Without Us", suggests that the Mount Rushmore memorial could last up to 7.2 million