ⓘ Geography of South Dakota
South Dakota is a state located in the north-central United States. It is usually considered to be in the Midwestern region of the country. The state can generally be divided into three geographic regions: eastern South Dakota, western South Dakota, and the Black Hills. Eastern South Dakota is lower in elevation and higher in precipitation than the western part of the state, and the Black Hills are a low, isolated mountain group in the southwestern corner of the state. Smaller sub-regions in the state include the Coteau des Prairies, Coteau du Missouri, James River Valley, the Dissected Till Plains. Geologic formations in South Dakota range in age from two billion-year-old Precambrian granite in the Black Hills to glacial till deposited over the last few million years. South Dakota is the 17th-largest state in the country.
South Dakota has a humid continental climate in the East and in the Black Hills and semi-arid climate in the West outside of the black hills, which includes four distinct seasons, and ecology of the state functions of plants and animals, typical for North America steppe biome. A number of areas under the protection of the Federal or state government, such as Badlands, wind cave national Park, state Park, and the caster are able to.
In 2011, the population of South Dakota is estimated at 824.082, and the state ranked fifth-lowest in the total population, and population density in the United States. Sioux falls, with a population of just over 170.000, is the largest city in the state. Rapid city is South Dakotas second largest city, and Pierre is the state capital. Historically a very agricultural state, and tourism has increased economic importance in recent years.