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Mount Thomson, Washington


Prominence: 1514 ft, 462 m

Elevation: 6554 feet, 1998 meters


True Isolation: 2.08 mi, 3.35 km
Elevation Info:NAVD88 Elevation: 6558 ft / 1999 m
Alternate Name(s)Mount Thompson
Latitude/Longitude (WGS84)47° 28' 20'' N, 121° 21' 39'' W
47.472323, -121.360711 (Dec Deg)
623524 E 5258956 N, Zone 10 (UTM)
CountryUnited States
State/ProvinceWashington
County/Second Level RegionKing
Links

Search Engines - search the web for "Mount Thomson":
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Other Web Sites
     Mount Thomson at SummitPost.org
     Mount Thomson at ListsOfJohn.com

Weather and Snow
     National Weather Service Forecast
     NOAA Snow Depth Map

Lists that contain Mount Thomson:
     Alpine Lakes "Home Court" Top 100 (Rank #18)
     Mountaineers Snoqualmie Peak Pin-All (Rank #2)
     Smoot's "Climbing Washington's Mountains" 100 Peaks (Rank #77)
     Mountaineers Snoqualmie Peak Pin-First Ten (Rank #1)

Selected Guidebook(s) for this Peak:
       Climbing Washingtons Mountains (Smoot)
       Cascade Alpine Guide, Vol. 1 (Beckey)

Selected Trip Reports from this site:
     1999-08-12 by Austin Smith
     2009-07-28 by Davin Jaggard (Unsuccessful)
     2010-08-29 by Chad Painter (Unsuccessful)
     2012-07-28 by Stephen Smoots
     2012-09-08 by Sean Albert
     2012-09-09 by Chad Painter (GPS Track)
     2014-07-05 by Evan Battaglia
     2014-09-06 by Dave Golias
     2015-08-08 by Jason Curtis (GPS Track)
     2015-08-23 by Sonja Serwold
     2015-09-27 by Chad Straub (GPS Track)
     2016-07-29 by Steve Brown (GPS Track)
     2016-08-21 by Andreas W
     2016-08-26 by Sam Wilson (GPS Track)
     2017-06-25 by Jim Walseth
     2017-07-22 by Michael Wanberg
     2017-08-19 by Owen Gabrielson
     2017-09-16 by Gabe O'Leary (GPS Track)
     2017-10-16 by Jason Curtis
     2018-08-04 by Bent Wiencke
     2018-08-05 by Colin P
     2018-09-29 by Karthik Krish (GPS Track)

View ascents of peak by registered Peakbagger.com members (128 total)

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

Thomson is one of the most precipitous and pointy peaks near Snoqualmie Pass, and its Matterhorn-like form is a landmark from nearby summits. It is a long hike in from I-90 to its base, and the climb is sustained class-3 scrambling by its easiest route.

This peak is very often spelled "Mount Thompson", by the Montaineers, Beckey, and others, but it is named after famed Seattle municipal engineer R.H. Thomson, and the new USGS 7.5 minute map correctly spells his name.

Click on photo for original larger-size version.
Looking down Mount Thomson's West Ridge, from the belay station at the end of the slabs on pitch 3 (2015-08-08). Photo by Jason Curtis.
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: 1514 ft/462 m
  Optimistic Prominence: 1554 ft/474 m
  Key Col: 5040 ft/1536 m
IsolationIsolation Page  (Detailed isolation information)
   Distance: 2.08 mi/3.35 km
   Isolation Limit Point: 47.4792, -121.3175
Nearest Higher Neighbor in the PBC database:
    Chikamin Peak  (ENE)
RangesContinent: North America
Range2: Pacific Ranges
Range3: Cascade Range
Range4: South Washington Cascades
Range5: Alpine Lakes Area
Range6: Snoqualmie Pass North (Highest Point)
Drainage BasinsSnohomish
Puget Sound
Pacific Ocean
OwnershipLand: Mount Baker-Snoqualmie National Forest
Wilderness/Special Area: Alpine Lakes Wilderness Area
Topo MapChikamin Peak O47121d3 1:24,000
Data Source1:25,000 (or larger) Topographic Survey Map
Dynamic Map

 Mount Thomson    Other Peaks
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Other Photos

Click on photo for original larger-size version.
Thomson from Bumblebee Pass. The scramble route goes up the scree field to the notch on the right, and then up the east ridge (2015-08-02). Photo by Chris Pribbernow.
Click here for larger-size photo.



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