Current US 16 highlighted in red | ||||
Route information | ||||
Maintained by SDDOT | ||||
Length | 69.00 mi[1] (111.04 km) | |||
Existed | 1926–present | |||
Major junctions | ||||
West end | ![]() | |||
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East end | ![]() ![]() | |||
Location | ||||
Country | United States | |||
State | South Dakota | |||
Counties | Custer, Pennington | |||
Highway system | ||||
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U.S. Highway 16 (US 16) is a 69-mile-long (111 km) east–west United States Numbered Highway in the western part of the state of South Dakota. It travels between Yellowstone National Park near Newcastle, Wyoming and Interstate 90 (I-90) in Rapid City.