Idaho. Idaho is a landlocked state in the Pacific Northwest and Mountain West subregions of the Western United States.
   It borders Montana and Wyoming to the east, Nevada and Utah to the south, and Washington and Oregon to the west; the state shares a small portion of the Canada–United States border to the north with the Canadian province of British Columbia. Idaho's state capital and largest city is Boise.
   With an area of 83,569 square miles, Idaho is the 14th-largest state by land area. The state has a population of approximately 2.0 million people, it ranks as the 13th-least populous and the seventh-least densely populated of the 50 U.S.
   states. For thousands of years, and prior to European colonization, Idaho had been inhabited by native peoples.
   In the early 19th century, Idaho was considered part of the Oregon Country, an area which was disputed between the U.S. and the British Empire. Idaho officially became a U.S. territory with the signing of the Oregon Treaty of 1846, but a separate Idaho Territory was not organized until 1863, instead being included for periods in Oregon Territory and Washington Territory. The state was eventually admitted to the Union on July 3, 1890, becoming the 43rd state. Forming part of the Pacific Northwest, Idaho is divided into several distinct geographic and climatic regions. The state's north, the relatively isolated Idaho Panhandle, is closely
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