Mount Isto, Alaska

Prominence: 7876 ft, 2401 m

Elevation: 8976 feet, 2736 meters

True Isolation: 393.64 mi, 633.5 km
Latitude/Longitude (WGS84)69° 12' 9'' N, 143° 48' 7'' W
69.202497, -143.801998 (Dec Deg)
389001 E 7679480 N, Zone 7 (UTM)
CountryUnited States
County/Second Level RegionNorth Slope (Highest Point)

Search Engines - search the web for "Mount Isto":
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Other Web Sites
     Isto; Mount at
     Weather for Mount Isto at
     Mount Isto at Summits on the Air (Amateur Radio) Trip Report for North Slope Borough, AK by Austin Post

Weather and Snow
     National Weather Service Forecast
     NOAA Snow Depth Map

Lists that contain Mount Isto:
     5000 foot Prominence CoHPs (Rank #52)
     United States Peaks with 100 miles of Isolation (Rank #11)
     USA Peaks with 6000 feet of Prominence (Rank #24)
     5000 foot gain CoHPs (Rank #42)
     Top 10 Isolation Grid for U.S. States (Rank #11)
     North America Range3 High Points (Rank #38)
     USA/Canada Peaks with 7000 feet of Prominence (Rank #36)
     USA/Canada Range4 High Points (Rank #98)
     North America Peaks with 200 km of Isolation (Rank #20)
     North America Peaks with 2000 meters of Prominence (Rank #42)
     Western USA CoHPs (Rank #229)
     Ultras of North America (Rank #42)
     World Peaks with 300 km of Isolation (Rank #166)
     Alaska Peaks with 100 Miles of Isolation (Rank #4)
     Alaska Borough/Census Area Prominence Peaks (Rank #10)
     Alaska Borough/Census Area High Points (Rank #13)
     High Points of the Arctic (Rank #2)
     Alaska Peaks with 5000 feet of Prominence (Rank #13)
     Ultras of Alaska (Rank #13)
     Alaska Wilderness High Points (Rank #7)
     Brooks Range Peaks with 3000 feet of Prominence (Rank #1)
(Peak is on over 20 lists; Not all shown here.)

Ascent Info

Total ascents/attempts logged by registered users: 7
     Show all viewable ascents/attempts (Total: 7)

Selected Trip Reports:
     2015-06-15 by Greg Slayden (Unsuccessful) (GPS Track)
     2015-06-18 by Greg Slayden (Unsuccessful) (GPS Track)
     2019-08-07 by Greg Slayden (Unsuccessful) (GPS Track)

Nearby Peak Searches:
     Radius Search - Nearest Peaks to Mount Isto
     Elevation Ladder from Mount Isto
     Prominence Ladder from Mount Isto

Differential GPS surveys done in 2014 have confirmed that Mount Isto is the highest point in the Brooks Range, the North Slope Borough, and the Arctic National Wildlife Refuge, as well as a peak with world-class prominence and isolation. Mount Chamberlin, 25 miles to the west, was long thought to be higher or at least a contender, but Isto is now known to be 75 feet higher.

Mount Isto is in a somewhat remote part of the Brooks Range. It lies near the headwaters of some popular rafting rivers that flow north to the Arctic, and access is by a bush plane landing on the tundra in the valley bottoms. The climbing features steep ridges of loose rock and/or small glaciers, but it would be considered relatively easy by Alaskan mountaineering standards.

Click on photo for original larger-size version.
The rugged East Ridge of Mount Isto under mid-June snow (2015-06-15).
Click here for larger-size photo.
Web Map LinksPeakfinder Panorama
GeoHack Links   CalTopo   MyTopo   Bing Maps
Google Maps   Open Street Map
ProminenceKey Col Page  (Detailed prominence information)
  Clean Prominence: 7876 ft/2401 m
  Optimistic Prominence: 7926 ft/2416 m
  Line Parent: Keele Peak
  Key Col: McDougal Pass    1100 ft/335 m
IsolationIsolation Page  (Detailed isolation information)
   Distance: 393.64 mi/633.5 km
   Isolation Limit Point: 63.548585, -145.192961
Nearest Higher Neighbor in the PBC database:
    Mount Hajdukovich  (S)
RangesContinent: North America
Range2: Alaska-Yukon Ranges
Range3: Brooks Range (Highest Point)
Range4: Eastern Brooks Range (Highest Point)
Range5: Romanzof Mountains (Highest Point)
Drainage BasinsBeaufort Sea
Arctic Ocean
OwnershipLand: Arctic National Wildlife Refuge (Highest Point)
Wilderness/Special Area: Mollie Beattie Wilderness Area (Highest Point)
Topo MapDemarcation Point A-5 I69143a4 1:63,360
Data Source1:62,500 Topographic Survey Map
Dynamic Map

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