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The mountain goat (Oreamnos americanus), also known as the Rocky Mountain goat, is a large-hoofed mammal found only in North America. Despite its vernacular name, it is not a member of Capra, the genus that includes the wild goat, Capra aegagrus, from which the domestic goat is derived. A subalpine to alpine species, it is a sure-footed climber commonly seen on cliffs and ice.
The mountain goat inhabits the Rocky Mountains and Cascade Range regions of North America, from Washington, Idaho and Montana through British Columbia and Alberta, into the southern Yukon and southeastern Alaska. Its northernmost range is said to be along the northern fringe of the Chugach Mountains in southcentral Alaska. Introduced populations can also be found in such areas as Idaho, Wyoming, Utah, Nevada, Oregon, Colorado, Texas, South Dakota and the Olympic Peninsula of Washington. Mountain goats are the largest mammals found in their high-altitude habitats, which reach elevations of 13,000 feet (4,000 m) or more. Although they sometimes descend to sea level in coastal areas, they are primarily an alpine and subalpine species. Throughout the year, the animals usually stay above the tree line, but they will migrate seasonally to higher or lower elevations within that range. Winter migrations to low-elevation mineral licks often take them several kilometers through forested areas.