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List of Ultras of the Rocky Mountains : ウィキペディア英語版 | List of Ultras of the Rocky Mountains
This article comprises a sortable table of the 38 ultra-prominent peaks of the Rocky Mountains of North America. An ultra-prominent peak is a summit with at least 1500 meters (4921.3 feet) of topographic prominence. Topographic elevation is the vertical distance above the reference geoid, a precise mathematical model of the Earth's sea level as an equipotential gravitational surface. Topographic prominence is the elevation difference between the summit and the highest or key col to a higher summit. Topographic isolation is the minimum great circle distance to a point of higher elevation. All elevations in the contiguous United States include an elevation adjustment from the National Geodetic Vertical Datum of 1929 (NGVD 29) to the North American Vertical Datum of 1988 (NAVD 88). For further information, please see this United States National Geodetic Survey (note ). Of these 38 ultra-prominent peaks, 15 are located in British Columbia, 9 in Alberta, 5 in Utah, 4 in Montana, 3 in Colorado, 3 in Wyoming and 2 in Idaho. Three of these peaks lie on the Continental Divide between Alberta and British Columbia. ==Table==
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