Search results
Results From The WOW.Com Content Network
Southwest of Lead, South Dakota, there is still an active open pit gold mine, run by Goldcorp. [9] South Dakota has oil and gas production in the Williston Basin in the northwest, although it produces only one percent of the US total, primarily from traditional vertical wells. One hundred wells produce 1.6 million gallons of oil annually.
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.
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 ...
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.
This is a listing of sites of archaeological interest in the state of South Dakota, in the United States
Name Image Date Location County Ownership Description Ancient River Warren Channel: 1965: Grant: mixed- state, private A channel cut by the Ancient River Warren during the Ice Age.
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 ...
Stalactites are pointed pendants hanging from the cave ceiling, from which they grow Soda straws are very thin but long stalactites with an elongated cylindrical shape rather than the usual more conical shape of stalactites; Helictites are stalactites that have a central canal with twig-like or spiral projections that appear to defy gravity