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(詳細はmajor mountain peaks of Canada. 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. This article defines a significant summit as a summit with at least 100 metres (328.1 feet) of topographic prominence, and a major summit as a summit with at least 500 metres (1640.4 feet) of topographic prominence. An ultra-prominent summit is a summit with at least 1500 metres (4921.3 feet) of topographic prominence. There are 142 ultra-prominent summits in Canada. ==Highest major summits== (詳細はtopographic prominence. The first 19 of these summits have at least of topographic elevation and at least 500 metres of topographic prominence. See the Highest mountain peaks of Canada for a table of the 100 highest summits of Canada with at least 500 metres of topographic prominence. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Mountain peaks of Canada」の詳細全文を読む スポンサード リンク
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