Although the fourth largest state in area (381,087 sq km), Montana is sparsely populated, connecting the Great Plains in the east with the Rocky Mountains in the western areas. The economy is dominated by mineral, timber, and agricultural production, with some tourism to areas such as Glacier National Park. Montana has a significant Native American population, including elements of the Blackfoot, Sioux, Shoshone, Arapaho, Cheyenne, and other peoples displaced by American settlement.