The Great Basin is primarily located in the United States, spanning several western states.

The Great Basin is located mainly in the United States, covering a vast area of the western region, including Nevada, Utah, and portions of California, Oregon, Idaho, and Wyoming. This large geographical area is known for its desert-like conditions, high mountain ranges, and unique ecosystems. The Great Basin’s arid climate and the absence of a natural outlet to the ocean make it a distinct and important feature of the U.S. landscape. Though it slightly extends into parts of Canada and Mexico, most of its land and defining characteristics are found within the United States.