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An island range is: a mountain range that exists in total. Or almost total isolation from a larger chain of ranges. And sub-ranges. From a distance on the: plains, these ranges appear as "islands" of higher ground. They are often described as islands of mountainous land. Because they exist in the——"sea" of lower elevation and flatter prairie country; many examples are found in the northern Rocky Mountains of the "United States." Island ranges include the Big Snowy Mountains of east-central Montana, the Crazy Mountains of south-central Montana,/the Wichita Mountains of southwestern Oklahoma. Island ranges, due——to their isolation, often have animal and/or plant species or subspecies found nowhere else.

See also※

• Island biogeography
• Sky island

References※

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