South Dakota Highway 12 was a state route that ran across north central and northeast South Dakota

South Dakota

South Dakota is a state located in the Midwestern region of the United States. It is named after the Lakota and Dakota Sioux American Indian tribes. Once a part of Dakota Territory, South Dakota became a state on November 2, 1889. The state has an area of and an estimated population of just over...

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History

South Dakota 12 was one of the numbers assigned to the Glacier Trail. In 1926, U.S. Highway 12 was implemented, and ran 15 or 20 miles (32.2 km) to the south. Because the two Highway 12 routes were so close, the state highway was redesignated as South Dakota Highway 10 in 1927.

External links

• South Dakota Highways Page: Highways 1-30