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According to the South Dakota State Historical Society's Archaeological Research Center, over 26,000 archaeological sites have been recorded in the U.S. state of South Dakota. [ 1 ] This list is broken down by county and encompasses sites across all of what is now South Dakota.
South Dakota National Natural Landmarks (clickable map) Name Image Date Location County Ownership Description Ancient River Warren Channel: 1965: Grant:
This is a listing of sites of archaeological interest in the state of South Dakota, in the United States
This is a list of properties and historic districts in the U.S. state of South Dakota that are listed on the National Register of Historic Places. The state's more than 1,300 listings are distributed across all of its 66 counties.
In 1974, heavy machine operators leveling land for a Hot Springs housing development uncovered a 7-foot tusk. Research continues.
There are 16 National Historic Landmarks (NHLs) in South Dakota, one of which is shared with Iowa and listed by the National Park Service as primarily in that state. They have been designated in 13 of South Dakota's 66 counties. Most are along rivers, long the chief areas of human settlement in this arid place.
Image showing the six most common speleothems with labels. Enlarge to view labels. A stalactite (UK: / ˈ s t æ l ə k ˌ t aɪ t /, US: / s t ə ˈ l æ k t aɪ t /; from Ancient Greek σταλακτός (stalaktós) 'dripping', from σταλάσσειν (stalássein) 'to drip') [1] is a mineral formation that hangs from the ceiling of caves, hot springs, or man-made structures such as ...
It contains a wide variety of natural formations. It is the ninth longest cave in South Dakota. It measures a distance of 3,652.6 feet (1,113.3 m). It was discovered in 1876 when a log flume that supplied water to mining operations in town of Hayward broke and spilled onto the side of the hill. As the water flowed down the hill it started ...