The topographic prominence of a summit is a measure of how high the summit rises above its surroundings.[4][3] The second table below ranks the 30 most prominent summits of Oregon.
The topographic isolation (or radius of dominance) of a summit measures how far the summit lies from its nearest point of equal elevation.[5] The third table below ranks the 30 most isolated major summits of Oregon.
Of the most prominent summits of Oregon, Mount Hood exceeds 2000 meters (6562 feet) of topographic prominence. Four peaks are ultra-prominent summits with more than 1500 meters (4921 feet) of topographic prominence and 12 peaks exceed 1000 meters (3281 feet) of topographic prominence.
The 30 most topographically prominent summits of Oregon
Of the most isolated major summits of Oregon, Sacajawea Peak and Steens Mountain exceed 200 kilometers (124.3 miles) of topographic isolation and Mount McLoughlin exceeds 100 kilometers (62.14 miles) of topographic isolation.
The 30 most topographically isolated summits of Oregon with at least 500 meters of topographic prominence
^The summit of Lookout Mountain is the highest point of the Ochoco Mountains.
^The elevation of Lookout Mountain includes an adjustment of +1.285 m (4.22 ft) from NGVD 29 to NAVD 88.
^The elevation of Black Mountain includes an adjustment of +1.216 m (3.99 ft) from NGVD 29 to NAVD 88.
References
^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.
