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Mount Fairweather elevation

Mount Fairweather rises to 15,325 ft (4,671 m) above sea level in Alaska.

Published summit elevation

15,325ft

4,671 m above sea level

Summit · Figure as published by the source cited on Wikidata.

Source: Bivouac Mountain Encyclopedia (cited on Wikidata Q1544340)

USGS 3DEP grid value (secondary)
15,304 ft (4,665 m)
21 ft below the published figure. Elevation grids average each cell, so they under-read sharp summits.
Source: USGS 3D Elevation Program
Rise above Gustavus, AK
15,306 ft
72 mi from the summit; nearest incorporated place
Source: USGS 3DEP at the town center

Data updated · By Ankit Kumar, compiled from public U.S. government and open datasets · How these numbers are made

Check your exact spot in the Mount Fairweather area

Elevation changes from street to street. Use your location, search an address or click the map to get the USGS value for one point. Green pins mark the points named on this page.

    Decimal (39.7392, -104.9903) or DMS (39°44'21"N 104°59'25"W).

    Or click the map

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    Map: USGS The National Map topographic basemap (US coverage).

    Your spot

    —ft

    Choose a location to see its elevation.

    Life at 15,304 ft

    Standard-atmosphere estimates for the summit of Mount Fairweather (15,304 ft, from the USGS grid value). Weather moves the real values a little from day to day.

    Water boils at
    184.0 °F
    84.5 °C
    Boiling point calculator
    Air pressure
    16.68 inHg
    565 hPa · 8.19 psi
    Pressure calculator
    Oxygen per breath
    56 % of sea level
    Air is still 20.9% oxygen; there is just less air.
    Home canning
    Above 1,000 ft, USDA processing times and pressure-canner pounds go up.
    Canning adjustments

    Sources: pressure from the U.S. Standard Atmosphere, 1976 (NOAA, NASA, USAF); boiling point from the Antoine equation for water (Lange's Handbook of Chemistry); canning thresholds from the USDA Complete Guide to Home Canning. Not medical or food-safety advice; follow the tested USDA recipe for your altitude.

    Health note: the CDC says unacclimatized travelers risk altitude illness when sleeping at about 8,000 ft or higher, and sometimes lower. This page is general information, not medical advice; read the CDC guidance on high-altitude travel and talk to a clinician before a high climb.

    Mount Fairweather and other Alaska peaks on this site

    Each peak's headline figure: its published summit elevation where one exists, otherwise the highest USGS 3DEP value near the summit.

    Landmark elevations

    WhatValueSource
    Published summit elevation15,325 ft (4,671 m)Bivouac Mountain Encyclopedia (cited on Wikidata Q1544340)
    Highest USGS 3DEP value near the summit15,304 ft (4,665 m)USGS 3DEP, 81 points within 250 m
    USGS 3DEP at the GNIS summit point15,281 ft (4,658 m)USGS 3DEP + GNIS coordinates
    Nearest town: Gustavus, AK19 ft (6 m) · 72 mi awayCensus Gazetteer + USGS 3DEP
    Nearest public airport: East Alsek River (AK76)39 ft (12 m) · 35 mi awayFAA field elevation
    Mount Quincy Adams (nearby summit)13,027 ft (3,971 m) · 2.0 mi awayGNIS position, USGS 3DEP at that point
    Mount Root (nearby summit)12,548 ft (3,825 m) · 5.5 mi awayGNIS position, USGS 3DEP at that point
    Mount Salisbury (nearby summit)12,098 ft (3,687 m) · 6.7 mi awayGNIS position, USGS 3DEP at that point
    Mount Watson (nearby summit)12,348 ft (3,764 m) · 7.1 mi awayGNIS position, USGS 3DEP at that point
    Lituya Mountain (nearby summit)11,890 ft (3,624 m) · 7.7 mi awayGNIS position, USGS 3DEP at that point

    Mount Fairweather at a glance

    WhatValueSource
    CountyHoonah-AngoonUSGS GNIS
    USGS 7.5-minute topo mapMount Fairweather D-5 NWUSGS GNIS
    Summit coordinates58.90650, -137.52658USGS GNIS

    More peaks and tools

    Frequently asked questions

    How tall is Mount Fairweather?

    Mount Fairweather is 15,325 ft (4,671 m) above sea level, according to Bivouac Mountain Encyclopedia (cited on Wikidata Q1544340). The highest USGS 3DEP grid value near the summit is 15,304 ft.

    Why does the USGS map value differ from the published height of Mount Fairweather?

    The USGS 3D Elevation Program stores ground elevation as a grid of cells. Each cell holds one value for its whole area, so a pointed summit is averaged with the slopes around it and the grid reads lower than a survey of the top. Here the difference is 21 ft.

    Where is Mount Fairweather?

    Mount Fairweather is in Hoonah-Angoon County, Alaska, at 58.9065, -137.5266, about 72 mi from Gustavus. It appears on the USGS Mount Fairweather D-5 NW 7.5-minute topographic map.

    How much oxygen is there at the top of Mount Fairweather?

    At 15,304 ft, water boils at about 184.0 °F (84.5 °C) and standard air pressure is 16.68 inHg (565 hPa), so each breath holds about 56% of the oxygen it would at sea level. The CDC says unacclimatized travelers risk altitude illness when they sleep at about 8,000 ft or higher, and sometimes lower.

    What is the closest airport to Mount Fairweather?

    The nearest public-use airport is East Alsek River (AK76), 35 mi away in a straight line, at 39 ft (FAA).

    Sources

    How each number is produced: methodology and data sources.

    Data updated · By Ankit Kumar, compiled from public U.S. government and open datasets · How these numbers are made