The topographic prominence of a summit is a measure of how high the summit rises above its surroundings.[5][4] The second table below ranks the 50 most prominent summits of greater North America.
The topographic isolation (or radius of dominance) of a summit measures how far the summit lies from its nearest point of equal elevation.[6] The third table below ranks the 50 most isolated major summits of greater North America.
^This article defines a significant summit as a summit with at least 100 meters (328.1 feet) of topographic prominence, and a major summit as a summit with at least 500 meters (1640 feet) of topographic prominence. All summits in this article have at least 500 meters of topographic prominence. An ultra-prominent summit is a summit with at least 1500 meters (4921 feet) of topographic prominence.