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
Alabama2,407ft / 734m1,445ft / 440m106.79mi / 171.85km60.03
Alaska20,320ft / 6,194m20,146ft / 6,140m4,615.93mi / 7,428.62km99.14
Arizona12,633ft / 3,851m6,039ft / 1,841m245.65mi / 395.34km47.80
Arkansas2,753ft / 839m2,133ft / 650m372.89mi / 600.11km77.48
California14,494ft / 4,418m10,078ft / 3,072m1,647.84mi / 2,651.94km69.53
Colorado14,433ft / 4,399m9,073ft / 2,765m669.15mi / 1,076.89km62.86
Connecticut*2,380ft / 725m0ft / 0m0.00mi / 0.00km0.00
Delaware448ft / 137m32ft / 10m0.75mi / 1.20km7.14
Florida345ft / 105m65ft / 20m5.94mi / 9.56km18.84
Georgia4,784ft / 1,458m2,108ft / 642m15.87mi / 25.55km44.06
Hawaii13,796ft / 4,205m13,796ft / 4,205m2,452.09mi / 3,946.26km100.00
Idaho12,662ft / 3,859m5,982ft / 1,823m150.36mi / 241.98km47.24
Illinois1,235ft / 376m95ft / 29m2.50mi / 4.03km7.69
Indiana1,257ft / 383m297ft / 90m46.65mi / 75.07km23.63
Iowa1,670ft / 509m40ft / 12m4.48mi / 7.22km2.40
Kansas4,039ft / 1,231m19ft / 6m29.48mi / 47.44km0.47
Kentucky4,145ft / 1,263m1,899ft / 579m14.65mi / 23.58km45.81
Louisiana535ft / 163m225ft / 69m86.26mi / 138.82km42.06
Maine5,268ft / 1,606m4,288ft / 1,307m158.14mi / 254.50km81.40
Maryland3,360ft / 1,024m80ft / 24m6.45mi / 10.38km2.38
Massachusetts3,491ft / 1,064m2,463ft / 751m23.67mi / 38.09km70.55
Michigan1,979ft / 603m948ft / 289m123.04mi / 198.01km47.90
Minnesota2,301ft / 701m1,321ft / 402m435.83mi / 701.39km57.41
Mississippi806ft / 246m296ft / 91m12.44mi / 20.02km36.72
Missouri1,772ft / 540m512ft / 156m148.18mi / 238.48km28.89
Montana12,799ft / 3,901m4,759ft / 1,450m86.06mi / 138.50km37.18
Nebraska5,424ft / 1,653m26ft / 8m1.37mi / 2.20km0.48
Nevada13,140ft / 4,005m253ft / 77m0.53mi / 0.86km1.93
New Hampshire6,288ft / 1,917m6,148ft / 1,874m819.14mi / 1,318.27km97.77
New Jersey1,803ft / 550m883ft / 270m23.68mi / 38.10km48.97
New Mexico13,161ft / 4,011m3,409ft / 1,039m37.07mi / 59.66km25.90
New York5,343ft / 1,629m4,914ft / 1,498m129.29mi / 208.06km91.97
North Carolina6,684ft / 2,037m6,089ft / 1,856m1,186.29mi / 1,909.14km91.10
North Dakota3,506ft / 1,069m546ft / 167m37.46mi / 60.28km15.57
Ohio1,550ft / 472m639ft / 195m168.98mi / 271.95km41.23
Oklahoma4,973ft / 1,516m0ft / 0m0.41mi / 0.66km0.00
Oregon11,239ft / 3,426m7,706ft / 2,349m57.33mi / 92.27km68.56
Pennsylvania3,213ft / 979m653ft / 199m25.02mi / 40.27km20.32
Rhode Island812ft / 247m192ft / 58m13.31mi / 21.42km23.65
South Carolina3,560ft / 1,085m754ft / 230m9.30mi / 14.96km21.18
South Dakota7,242ft / 2,207m2,911ft / 887m139.40mi / 224.34km40.20
Tennessee6,643ft / 2,025m4,503ft / 1,373m70.59mi / 113.61km67.79
Texas8,749ft / 2,667m3,029ft / 924m72.70mi / 117.00km34.62
Utah13,528ft / 4,123m6,348ft / 1,935m166.70mi / 268.27km46.92
Vermont4,393ft / 1,339m3,633ft / 1,107m51.85mi / 83.44km82.70
Virginia5,729ft / 1,746m2,449ft / 746m40.55mi / 65.26km42.75
Washington14,411ft / 4,392m13,210ft / 4,026m731.85mi / 1,177.79km91.67
West Virginia4,863ft / 1,482m2,781ft / 848m175.47mi / 282.39km57.19
Wisconsin1,951ft / 595m425ft / 130m91.84mi / 147.80km21.78
Wyoming13,804ft / 4,207m7,076ft / 2,156m290.12mi / 466.90km51.26
District of Columbia410ft / 125m75ft / 22m4.27mi / 6.87km18.29
American Samoa3,160ft / 963m3,160ft / 963m149.26mi / 240.22km100.00
Guam1,332ft / 406m1,332ft / 406m64.39mi / 103.62km100.00
Northern Marianas Is3,166ft / 965m3,166ft / 965m1,182.55mi / 1,903.14km100.00
Puerto Rico4,390ft / 1,338m4,390ft / 1,338m244.21mi / 393.02km100.00
US Virgin Is1,556ft / 474m1,556ft / 474m20.66mi / 33.25km100.00

* – 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.

Highpoints by various Difficulty measures

This map is based upon the work of Dr. Thomas Martin and his classification of the 50 State summits. The icons are color-coded by their Martin Classification and have three arms representing the Gain and round-trip Distance.

These two scatter plots show the Gain versus the Hiking 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. These clusters are slightly different than those of the Martin Classification.

People are always curious about “How hard is it?”. This table presents the highpoints with various “difficulty” measures:
YDS – Yosemite Decimal System is mostly a technical climbing rating system
COHP – COHP Class Ratings is mostly a technical climbing rating system
Martin – Martin Classification based upon elevation gain and distance hiked
Gain – Total vertical gain in feet on the “standard” (easiest) route
Dist – Round-trip distance (trailhead to summit) in miles on the “standard” (easiest) route

State Elev YDS COHP Martin Gain Dist
Alabama2,407ft / 734m101(w)100.0
Alaska20,320ft / 6,194m441024,50056.0
Arizona12,633ft / 3,851m1163,5009.0
Arkansas2,753ft / 839m1122251.0
California14,494ft / 4,418m1176,75021.4
Colorado14,433ft / 4,399m1165,0009.0
Connecticut2,380ft / 725m1134503.6
Delaware448ft / 137m101(w)100.0
Florida345ft / 105m101(w)100.0
Georgia4,784ft / 1,458m112(w)4001.0
Hawaii13,796ft / 4,205m1122300.4
Idaho12,662ft / 3,859m3385,5006.8
Illinois1,235ft / 376m1022752.5
Indiana1,257ft / 383m101(b)100.1
Iowa1,670ft / 509m101(w)100.1
Kansas4,039ft / 1,231m101(w)100.0
Kentucky4,145ft / 1,263m101(w)100.1
Louisiana535ft / 163m1121501.8
Maine5,268ft / 1,606m1254,20010.4
Maryland3,360ft / 1,024m1137502.2
Massachusetts3,491ft / 1,064m101(w)200.1
Michigan1,979ft / 603m111(w)100.0
Minnesota2,301ft / 701m1146007.0
Mississippi806ft / 246m101(w)100.0
Missouri1,772ft / 540m111(w)300.4
Montana12,799ft / 3,901m4497,70022.2
Nebraska5,424ft / 1,653m101(w)100.0
Nevada13,140ft / 4,005m2264,4007.4
New Hampshire6,288ft / 1,917m101200.0
New Jersey1,803ft / 550m101(w)400.2
New Mexico13,161ft / 4,011m1163,2506.2
New York5,343ft / 1,629m1153,20014.8
North Carolina6,684ft / 2,037m101(w)1000.2
North Dakota3,506ft / 1,069m1124002.0
Ohio1,550ft / 472m101(w)100.0
Oklahoma4,973ft / 1,516m1147758.6
Oregon11,239ft / 3,426m4485,3008.0
Pennsylvania3,213ft / 979m101(w)100.0
Rhode Island812ft / 247m101(b)100.2
South Carolina3,560ft / 1,085m101(w)100.0
South Dakota7,242ft / 2,207m1141,5005.8
Tennessee6,643ft / 2,025m112(w)3301.0
Texas8,749ft / 2,667m1152,9508.4
Utah13,528ft / 4,123m2275,35028.8
Vermont4,393ft / 1,339m1135502.8
Virginia5,729ft / 1,746m1141,5008.6
Washington14,411ft / 4,392m4499,10016.0
West Virginia4,863ft / 1,482m101(w)200.3
Wisconsin1,951ft / 595m1111200.4
Wyoming13,804ft / 4,207m4498,65040.4
District of Columbia410ft / 125m101100.0
American Samoa3,160ft / 963m2243,1605.0
Guam1,332ft / 406m2237103.3
Northern Marianas Is3,166ft / 965m3363,1666.0
Puerto Rico4,390ft / 1,338m1116150.6
US Virgin Is1,556ft / 474m101100.0

Wall Street Journal’s Jon Kamp takes a look at Highpointing and Britton Hill

The Wall Street Journal’s Jon Kamp took a look at the quest of various highpointers and the role Florida’s Britton Hill plays in the adventure.


It’s no Denali, but in the run for 50, each highpoint counts the same.

Issue #116 of “Apex to Zenith” First Quarter 2017

Topic Page
48 Finishers
• Donny Roush
2, 6
50 and 48 5
Article – Ask a Guide – Can I Climb Gannett Peak? 12
Article – Highpointing with Kids 14
Article – Into Thick Air 19
Article – When HPs are not HPs 15
Board of Directors Election 25
Call for Awards 9
Completer Firsts, by State 4
County Highpointing 15
Editor’s Note – Dues Graph 10
Editor’s Note – Members by Count 11
Errata 6
Gathering in Arizona 7
Highpoint Updates
• Arizona – Humphreys Peak
• Colorado – Mt Elbert
• Illinois – Charles Mound
• Louisiana – Driskill Mountain
• Maine – Mt Katahdin
• Maryland – Backbone Mountain
• Nebraska – Panorama Point
• Nevada – Boundary Peak
• New York – Mt Marcy
• North Dakota – White Butte
• Ohio – Campbell Hill
• Oklahoma – Black Mesa
• Rhode Island – Jerimoth Hill
20 – 25
Klimbin’ Kollaborator 13
Le Cache 8
Lists! – Second Lap 26
MASSACHUSETTS 2017 16 – 19
Membership 9
Merc 27
Milestones 2, 28 – 31
New Members 9
President’s Message 8
Quiz – HP Geography 11
S.O.S. #40 Skin Cancer – part 1 or 2 7
Scholarship 7

If you are interested in this back issue, please contact the newsletter editor (newsletter@highpointers.org).

2016 Brought a Spike in Visitors to Mt. Mitchell State Park

Though it is the highest point east of the Mississippi River, Mt. Mitchell is one of the more accessible highpoints.  A drive along the Blue Ridge Parkway takes one to Mt. Mitchell State Park.  From there, one can drive to a parking lot near the summit and hike a short distance on a paved route to the summit. 

In 2016, more people took advantage of this park than in previous years as Mt. Mitchell State Park, home of North Carolina’s highpoint and highest point of the Eastern United States, saw an over 25% increase in visitors in 2016 over 2015.


Panorama Point Now Open


Panorama Point is open!  As we go through the rest of winter and the early parts of spring, one can anticipate that there will be other temporary closures to Nebraska’s highpoint.  

We’ll keep you updated.



Panorama Point, the highpoint of Nebraska, is currently closed due to road conditions.

Please do not attempt to walk the road as bison roam within the fence.

Thanks for your cooperation.

“Record” Snowfall on Mt. Mitchell Revised

A view of Mt. Mitchell from an overlook on the Blue Ridge Parkway.

In January of 2016, Mt. Mitchell received a reported 41 inches of snowfall in a 24 hour period from 7am January 22nd to the same time on January 23rd. 

However, that report was ruled incorrect by a state weather committee, who met for the first time in more than a decade.

The committee took a look at a variety of factors before lowering the recognized snowfall amount on North Carolina’s highest point.

No matter the current record, the story does go a long way to showing how easy it is for the areas in the Blue Ridge, especially Mt. Mitchell to receive quite a bit of snow in a short period.   Any of our readers hiked the highest point east of the Mississippi in the snow?


Airmen Use Highpointing as Training Exercise

A view from the trail to the summit of Mt. Rogers, Virginia’s highpoint.

While many people take up highpointing as a hobby to enjoy the great outdoors and to travel to new places, Chief Master Sgt. Dean Werner highpoints as a way reinforce the four pillars of comprehensive airmen fitness: mental, physical, social and spiritual fitness.

The idea of highpointing providing such reinforcement should not come as a surprise to those involved in the activity. While there are many peaks that only require walking a few hundred feet from a parking lot, there are several that require long hikes or travel over difficult terrain, pushing people past limits they may have seen as impassable.  Highpointing is a way to make one mentally tougher than they have been before, but also it has a way of making people push their critical thinking and decision making skills to another level as well.

It would also be tough to argue that highpointing is not good for one’s soul.  Who doesn’t have moments from highpointing trips that have become part of the fabric of who they now are?  Whether this has been a result of nature, company of the trip, or other factors, the quest often provides new dimensions to one’s life. 

How has highpointing changed or reinforced the person you are?

Massachusetts 2017 Convention Schedule Announced

The 2017 Massachusetts Convention schedule has been announced, and it features three days of events for highpointers who will be in attendance.


Searching for a Signal

For many, exploring the Great Outdoors means disconnecting from the busy nature of everyday life. Perhaps this is the reason why two new proposals to bring cell service to Mount Rainier National Park have created such a stir.

While the park has yet to issue a decision, many have already issued opinions on the matter.