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 Sunapee State Park and southern New Hampshire by the Monadnock-Sunapee Greenway and to the ten-town Lake Sunapee region by the "emerald necklace" of the Sunapee-Ragged-Kearsarge Greenway which connects Mt. Sunapee to Wadleigh State Park in Sutton and to Winslow and Rollins State Parks on Mount Kearsarge in Warner and Wilmot. The trail also links three New Hampshire state forests: Gile, Kearsarge and Shadow Hill, as well as one state wildlife management area: Bog Mountain. Mount Sunapee State Park Mount Sunapee State Park is a state park in Newbury, New Hampshire. The park includes a beach portion on Lake Sunapee and most of Mount