50states.com: South Dakota http://www.50states.com/sdakota.htm
The site provides a wealth of information about South Dakota. It includes everything from the highest point to county profile to climate.
Things To Do in South Dakota http://www.thingstodo.com/states/SD/index.htm
ThingsToDo.com is an online guide to information about South Dakota's entertainment, recreation, and travel, and includes the state's interesting facts, famous people, and special events.
FedStats: MapStat: United States: South Dakota http://www.fedstats.gov/qf/states/46000.html
Fast access to statistics from more than 100 federal agencies on "economic and population trends, crime, education, health care, aviation safety, energy use, farm production and more" in South Dakota.
The Black Hills are the highest mountains east of the Rockies.
A memorial to Crazy Horse is being carved in granite near Custer.
The Badlands of SD, a region of barren ravines and cliffs, were created by volcanic action as well as by wind and water erosion.
The Spirit Mound near Vermillion served as a vantage point for Lewis and Clark as they viewed the Prairie Plains.
The Mammoth Site in Hot Springs has 100 Columbian and Woolly Mammoth fossils buried there.
Some of the logs in Petrified Wood Park in Lemmon weigh more than 10,000 pounds. Others contain the fossilized remains of snakes and early marine life.
Sitting Bull's grave sits on a bluff overlooking the Missouri River near Mobridge. It wasn't always there. In 1953 under the cover of darkness, a group of South Dakotans snuck into ND, exhumed his bones (with his relatives' permission) and reburied them in their rightful home.
Some Famous People from this State
Sitting Bull (1834?-1890), Chief of Hunkpappa Sioux. He defended Black HIlls, led the Teton Sioux to Canada, and was killed during arrest.
Tom Brokaw (1940- ), TV newscaster. He is the anchor of "NBC Nightly News".
Crazy Horse (1840?-1877), Oglala chief. He led the Teton Sioux in defense of Black HIlls and died resisting arrest.
Gertrude Bonnin (Zitkala-Sa), Sioux writer and pan-Indian activist.
Cheryl Ladd (1951- ), actress. She was famous for her role in the TV series, Charlie's Angels.