South Dakota State Historical Society South Dakota State Historical Society The South Dakota State Historical Society is South Dakota's official state historical society and is located in Pierre, South Dakota at 900 Governors Drive. It is a part of the Department of Education The South Dakota State Historical Society was founded in 1862 as the Old Settlers Association of Dakota Territory. In 1901, the South Dakota Legislature established the Association as the official state historical society. In 1975, the State Archives were incorporated into the Society, which continues to operate them and also functions as a public library. In 1989 the Culture Heritage Center was
South Dakota Highway 168 South Dakota Highway 168 South Dakota Highway 168 (SD 168) is a state highway in Butte County in the U.S. state of South Dakota. It runs from U.S. Route 85 (US 85) to SD 79. The highway is maintained by the South Dakota Department of Transportation (SDDOT), and is not part of the National Highway System. SD 168 begins at an intersection with US 85 in Butte County and treks southeast through rolling plains. The route continues in this direction for approximately before meeting its eastern terminus at an intersection with SD 79 north of Castle Rock. SD 168 is