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The region is located just to the east of the Rocky Mountains, much of it covered in prairie, steppe, and grassland. They are the western part of the Interior Plains , which 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 .
The Midwestern United States, also referred to as the Midwest or the American Midwest, is one of four census regions of the United States Census Bureau. It occupies the northern central part of the United States. [1] It was officially named the North Central Region by the U.S. Census Bureau until 1984. [2]
The physiographic regions of the contiguous United States comprise 8 divisions, 25 provinces, and 85 sections. [1] The system dates to Nevin Fenneman 's report Physiographic Divisions of the United States, published in 1916. [2] [3] The map was updated and republished by the Association of American Geographers in 1928. [4]
Autumn in the Driftless Area of Cross Plains, Wisconsin. The Driftless Area, also known as Bluff Country and the Paleozoic Plateau, is a topographical and cultural region in the Midwestern United States [1] that comprises southwestern Wisconsin, southeastern Minnesota, northeastern Iowa, and the extreme northwestern corner of Ill
Geological map of Mammoth Cave National Park, incl. St. Louis Limestone. Outcrops of the St. Louis Limestone near Frenchburg, Kentucky. The St. Louis Limestone is a large geologic formation covering a wide area of the midwest of the United States. It is named after an exposure at St. Louis, Missouri. It consists of sedimentary limestone with ...
Geography of Minnesota. The U.S. State of Minnesota is the northernmost state outside Alaska; its isolated Northwest Angle in Lake of the Woods is the only part of the 48 contiguous states lying north of the 49th parallel north. Minnesota is in the U.S. region known as the Upper Midwest in interior North America.
Burlington Limestone is present in nearly all major Mississippian outcrop regions in Missouri. It is known from Iowa to northwestern Arkansas and from western Illinois to western Kansas. It is present throughout Missouri, except in the Ozark uplift, where it has been removed by erosion. Differentiation of the Burlington with the overlaying ...
North Dakota is located in the Upper Midwest region of the United States. It lies at the center of the North American continent and borders Canada to the north. The geographic center of North America is near the town of Rugby. Bismarck is the capital of North Dakota, and Fargo is the most populous city.