Seal of South Dakota of Fort Pierre and shall be the basis for all reproductions of the great seal of the State of South Dakota. The South Dakota Secretary of State is the designated custodian of the South Dakota State Seal. Seal of South Dakota The Great Seal of the State of South Dakota was designed while the area was a territory, in 1885. The outer ring of the seal contains the text "State of South Dakota" on the top and "Great Seal" on the bottom. Also the year of statehood, 1889. Inside the inner circle of the seal contains the state motto "Under
South Dakota Highway 89 South Dakota Highway 89 South Dakota Highway 89 (SD 89) is a state highway in the southwestern part of the U.S. state of South Dakota. The highway travels from U.S. Route 18 (US 18) near Minnekahta to SD 87 in Custer State Park. SD 89 is concurrent with US 385 from Pringle to Custer. The portion of the highway from Custer to SD 87 is part of the Peter Norbeck Scenic Byway. SD 89 was established in 1950 from Spearfish to Minnekahta. The section from SD 87 to Spearfish was redesignated as US 14 Alternate and U.S. Forest Service roads.