Missouri RiverThe Missouri River is the longest river in the United States. Rising in the Eastern Centennial Mountains of the Bitteroot Range of the Rocky Mountains of Southwestern Montana, the Missouri flows east and south for before entering the Mississippi River north of St. Louis, Missouri. The river drains a sparsely populated, semi-arid watershed of more than 500,000 square miles (1,300,000 km2), which includes parts of ten U.S. states and two Canadian provinces.
Omaha peopleThe Omaha (Omaha-Ponca: Umonhon) are a federally recognized Midwestern Native American tribe who reside on the Omaha Reservation in northeastern Nebraska and western Iowa, United States. There were 5,427 enrolled members as of 2012. The Omaha Reservation lies primarily in the southern part of Thurston County and northeastern Cuming County, Nebraska, but small parts extend into the northeast corner of Burt County and across the Missouri River into Monona County, Iowa.
SacagaweaSacagawea (ˌsækədʒəˈwiːə or səˌkɑːɡəˈweɪə ; also spelled Sakakawea or Sacajawea; May 1788 – December 20, 1812 or April 9, 1884) was a Lemhi Shoshone woman who, in her teens, helped the Lewis and Clark Expedition in achieving their chartered mission objectives by exploring the Louisiana Territory. Sacagawea traveled with the expedition thousands of miles from North Dakota to the Pacific Ocean, helping to establish cultural contacts with Native American people and contributing to the expedition's knowledge of natural history in different regions.
Great PlainsThe Great Plains (Grandes Plaines), sometimes simply "the Plains", is a broad expanse of flatland in North America. It is located just to the east of the Rocky Mountains, much of it covered in prairie, steppe, and grassland. It is the western part of the Interior Plains, which also include the mixed grass prairie, the tallgrass prairie between the Great Lakes and Appalachian Plateau, and the Taiga Plains and Boreal Plains ecozones in Northern Canada.
New MexicoNew Mexico (Nuevo México ˈnweβo ˈmexiko; Yootó Hahoodzo jòːthó hɑ̀hòːtsò) is a state in the Southwestern United States. It is one of the Mountain States of the southern Rocky Mountains, sharing the Four Corners region of the western U.S. with Utah, Colorado, and Arizona, and bordering Texas to the east and southeast, Oklahoma to the northeast, and the Mexican states of Chihuahua and Sonora to the south. New Mexico's largest city is Albuquerque, and its state capital is Santa Fe, the oldest state capital in the U.
SiouxThe Sioux or Oceti Sakowin (suː; Dakota: Očhéthi Šakówiŋ /otʃheːthi ʃakoːwĩ/) are groups of Native American tribes and First Nations peoples in North America. The modern Sioux consist of two major divisions based on language divisions: the Dakota and Lakota; collectively they are known as the Očhéthi Šakówiŋ ("Seven Council Fires"). The term "Sioux" is an exonym created from a French transcription ("Nadouessioux") of the Ojibwe term "Nadowessi", and can refer to any ethnic group within the Great Sioux Nation or to any of the nation's many language dialects.
Louisiana PurchaseThe Louisiana Purchase (Vente de la Louisiane) was the acquisition of the territory of Louisiana by the United States from the French First Republic in 1803. This consisted of most of the land in the Mississippi River's drainage basin west of the river. In return for fifteen million dollars, or approximately eighteen dollars per square mile, the United States nominally acquired a total of in Middle America.