The Interior Plains stretch from The Gulf of Mexico in the United States to the Arctic Ocean in Canada.

This expansive region covers much of the central part of North America, extending from the southern United States near the Gulf of Mexico to the northern reaches of Canada, where it meets the Arctic Ocean. The Interior Plains are an important agricultural and resource-rich area, and they include parts of the U.S. Great Plains and Canada's Prairie Provinces. This region is known for its flat to gently rolling landscape and plays a vital role in farming and natural resource extraction.