U.S. Route 14 in South Dakota

U.S. Highway 14 (US 14) is a part of the United States Numbered Highway System that travels from Yellowstone National Park in Wyoming, to Chicago, Illinois. In the state of South Dakota, US 14 runs from the Wyoming border east to the Minnesota border.

Route description
The South Dakota section of US 14 enters the state from Wyoming concurrent with Interstate 90 (I-90). It passes through Spearfish, Sturgis, Rapid City, and Wall, before leaving I-90. US 14 then passes through Philip, Midland, Pierre, Highmore, Miller, Wolsey, Huron, De Smet, Arlington, and Brookings, then leaving the state at the Minnesota state line.

US 14A winds through the northern part of the scenic Black Hills, taking travelers from Sturgis to Spearfish. The Laura Ingalls Wilder Historic Highway incorporates US 14 from De Smet in the west to Rochester, Minnesota, in the east.

US 14 and US 83 serve Pierre, one of only four state capitals not on the Interstate Highway System.

The South Dakota section of US 14 is legally defined at South Dakota Codified Laws § 31-4-134.

History
The segment of US 14 in South Dakota was previously part of the Black and Yellow Trail linking Chicago, Illinois, to Yellowstone National Park.

Special routes
South Dakota has four current special routes of US 14: an alternate route from Spearfish to Sturgis, a truck route in Pierre, a business loop in Huron, and a bypass route in Brookings. There is also a former business loop in Rapid City.