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List of the most isolated major summits of the United States
The following sortable table lists the 250 most topographically isolated mountain peaks of the United States with at least of topographic prominence.
Topographic elevation is the vertical distance above the reference geoid, a mathematical model of the Earth's sea level as an equipotential gravitational surface. The topographic prominence of a summit is the elevation difference between that summit and the highest or key col to a higher summit. The topographic isolation of a summit is the minimum great-circle distance to a point of equal elevation.
This article defines a significant summit as a summit with at least of topographic prominence, and a major summit as a summit with at least of topographic prominence. An ultra-prominent summit is a summit with at least of topographic prominence. There are 127 ultra-prominent summits in the United States.
All elevations in the 48 states of 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 250 most isolated summits, 75 are located in Alaska, 27 in California, 25 in Montana, 22 in Colorado, 15 in Nevada, 14 in Utah, 10 in Wyoming, 10 in Arizona, 9 in Hawaii, 9 in Washington, 9 in Idaho, 6 in New Mexico, 6 in Oregon, 3 in Texas, 2 in North Carolina, 2 in New York, 2 in Maine, and one each in New Hampshire, Arkansas, West Virginia, South Dakota, and Tennessee. Three of these summits lie on the border between Alaska and British Columbia, two lie on the border between Alaska and Yukon, and one lies between North Carolina and Tennessee.
In the United States, only Denali exceeds of topographic isolation. Three summits exceed , seven exceed , 12 exceed , 43 exceed , 108 exceed , and 201 exceed of topographic isolation.
==Table==
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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