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Interior Plains

The Interior Plains are highlighted in red.

The Interior Plains is a vast physiographic region that spreads across the Laurentian craton of central North America, extending along the east flank of the Rocky Mountains from the Gulf Coast region to the Arctic Beaufort Sea. In Canada, it encompasses the Canadian Prairies separating the Canadian Rockies from the Canadian Shield, as well as the Boreal Plains and Taiga Plains east of the Mackenzie and Richardson Mountains; while in the United States, it includes the Great Plains of the West/Midwest and the tallgrass prairie region to the south of the Great Lakes extending east to the Appalachian Plateau region.[1]

  1. ^ Donald F. Acton; J.M. Ryder; Hugh French (March 14, 2015). "Physiographic Regions". Canadian Encyclopedia. Retrieved June 2, 2019. Interior Plains

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