Highpoints by Prominence, Isolation and Dominance

This map is based upon Prominence and Isolation data from Peakbagger and Eberhard Jurgalski’s work on Dominance. The icons are color-coded by their Altitude Class (Dominance). Each summit is linked to its Prominence Key-Col (horse icon) by a purple line and has a separate orange line drawn to its ILP (Isolation Limit Point).

These two scatter plots show the Prominence height versus the Isolation distance in linear (left) and log (right – for better readability) scales. I then ran a clustering algorithm to form clusters of peaks which are color-coded in the table below.

This table presents other meausres used to quantify summits:
Prom – Prominence is the vertical distance between peak and key col
Iso – Isolation is the radius of dominance
Dom – Dominance as defined by Eberhard Jurgalski

State	Elev	Prom	Iso	Dom
Alabama	2,407ft / 734m	1,445ft / 440m	106.79mi / 171.85km	60.03
Alaska	20,320ft / 6,194m	20,146ft / 6,140m	4,615.93mi / 7,428.62km	99.14
Arizona	12,633ft / 3,851m	6,039ft / 1,841m	245.65mi / 395.34km	47.80
Arkansas	2,753ft / 839m	2,133ft / 650m	372.89mi / 600.11km	77.48
California	14,494ft / 4,418m	10,078ft / 3,072m	1,647.84mi / 2,651.94km	69.53
Colorado	14,433ft / 4,399m	9,073ft / 2,765m	669.15mi / 1,076.89km	62.86
Connecticut*	2,380ft / 725m	0ft / 0m	0.00mi / 0.00km	0.00
Delaware	448ft / 137m	32ft / 10m	0.75mi / 1.20km	7.14
Florida	345ft / 105m	65ft / 20m	5.94mi / 9.56km	18.84
Georgia	4,784ft / 1,458m	2,108ft / 642m	15.87mi / 25.55km	44.06
Hawaii	13,796ft / 4,205m	13,796ft / 4,205m	2,452.09mi / 3,946.26km	100.00
Idaho	12,662ft / 3,859m	5,982ft / 1,823m	150.36mi / 241.98km	47.24
Illinois	1,235ft / 376m	95ft / 29m	2.50mi / 4.03km	7.69
Indiana	1,257ft / 383m	297ft / 90m	46.65mi / 75.07km	23.63
Iowa	1,670ft / 509m	40ft / 12m	4.48mi / 7.22km	2.40
Kansas	4,039ft / 1,231m	19ft / 6m	29.48mi / 47.44km	0.47
Kentucky	4,145ft / 1,263m	1,899ft / 579m	14.65mi / 23.58km	45.81
Louisiana	535ft / 163m	225ft / 69m	86.26mi / 138.82km	42.06
Maine	5,268ft / 1,606m	4,288ft / 1,307m	158.14mi / 254.50km	81.40
Maryland	3,360ft / 1,024m	80ft / 24m	6.45mi / 10.38km	2.38
Massachusetts	3,491ft / 1,064m	2,463ft / 751m	23.67mi / 38.09km	70.55
Michigan	1,979ft / 603m	948ft / 289m	123.04mi / 198.01km	47.90
Minnesota	2,301ft / 701m	1,321ft / 402m	435.83mi / 701.39km	57.41
Mississippi	806ft / 246m	296ft / 91m	12.44mi / 20.02km	36.72
Missouri	1,772ft / 540m	512ft / 156m	148.18mi / 238.48km	28.89
Montana	12,799ft / 3,901m	4,759ft / 1,450m	86.06mi / 138.50km	37.18
Nebraska	5,424ft / 1,653m	26ft / 8m	1.37mi / 2.20km	0.48
Nevada	13,140ft / 4,005m	253ft / 77m	0.53mi / 0.86km	1.93
New Hampshire	6,288ft / 1,917m	6,148ft / 1,874m	819.14mi / 1,318.27km	97.77
New Jersey	1,803ft / 550m	883ft / 270m	23.68mi / 38.10km	48.97
New Mexico	13,161ft / 4,011m	3,409ft / 1,039m	37.07mi / 59.66km	25.90
New York	5,343ft / 1,629m	4,914ft / 1,498m	129.29mi / 208.06km	91.97
North Carolina	6,684ft / 2,037m	6,089ft / 1,856m	1,186.29mi / 1,909.14km	91.10
North Dakota	3,506ft / 1,069m	546ft / 167m	37.46mi / 60.28km	15.57
Ohio	1,550ft / 472m	639ft / 195m	168.98mi / 271.95km	41.23
Oklahoma	4,973ft / 1,516m	0ft / 0m	0.41mi / 0.66km	0.00
Oregon	11,239ft / 3,426m	7,706ft / 2,349m	57.33mi / 92.27km	68.56
Pennsylvania	3,213ft / 979m	653ft / 199m	25.02mi / 40.27km	20.32
Rhode Island	812ft / 247m	192ft / 58m	13.31mi / 21.42km	23.65
South Carolina	3,560ft / 1,085m	754ft / 230m	9.30mi / 14.96km	21.18
South Dakota	7,242ft / 2,207m	2,911ft / 887m	139.40mi / 224.34km	40.20
Tennessee	6,643ft / 2,025m	4,503ft / 1,373m	70.59mi / 113.61km	67.79
Texas	8,749ft / 2,667m	3,029ft / 924m	72.70mi / 117.00km	34.62
Utah	13,528ft / 4,123m	6,348ft / 1,935m	166.70mi / 268.27km	46.92
Vermont	4,393ft / 1,339m	3,633ft / 1,107m	51.85mi / 83.44km	82.70
Virginia	5,729ft / 1,746m	2,449ft / 746m	40.55mi / 65.26km	42.75
Washington	14,411ft / 4,392m	13,210ft / 4,026m	731.85mi / 1,177.79km	91.67
West Virginia	4,863ft / 1,482m	2,781ft / 848m	175.47mi / 282.39km	57.19
Wisconsin	1,951ft / 595m	425ft / 130m	91.84mi / 147.80km	21.78
Wyoming	13,804ft / 4,207m	7,076ft / 2,156m	290.12mi / 466.90km	51.26
District of Columbia	410ft / 125m	75ft / 22m	4.27mi / 6.87km	18.29
American Samoa	3,160ft / 963m	3,160ft / 963m	149.26mi / 240.22km	100.00
Guam	1,332ft / 406m	1,332ft / 406m	64.39mi / 103.62km	100.00
Northern Marianas Is	3,166ft / 965m	3,166ft / 965m	1,182.55mi / 1,903.14km	100.00
Puerto Rico	4,390ft / 1,338m	4,390ft / 1,338m	244.21mi / 393.02km	100.00
US Virgin Is	1,556ft / 474m	1,556ft / 474m	20.66mi / 33.25km	100.00

* – Note that Connecticut doesn’t have prominence or isolation because it is a contour line on the side of Mt Frissell. Thus these measures have no meaning.

Edward Earl, over at COHP, has produced this map showing each state’s highpoint (HP), most prominent point (PP) and distance isolation point (IP). Please click on the map to see the map’s legend.