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Mount Thomson

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West Ridge T 

Mount Thomson Rock Climbing 

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Location: 47.47211, -121.36111 View Map  Incorrect?
Page Views: 2,780
Administrators: Scott Coldiron, Nate Ball, Jon Nelson, Micah Klesick, Kristine Hoffman (sitewide)
Submitted By: Shaun Johnson on May 31, 2015
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Kendall Katwalk after a long foggy day on Mt Thomp...


Interesting looking peak located in a beautiful part of Snoqualmie Pass.

Getting There 

Hike the PCT about 6.5 miles to Bumble Bee notch; Passing Kendall Katwalk on the way. Then cross a beautiful alpine basin to base of Mount Thompson.

Climbing Season

Weather station 4.8 miles from here

2 Total Climbing Routes

['4 Stars',0],['3 Stars',0],['2 Stars',2],['1 Star',0],['Bomb',0]

Classic Climbing Routes in Mount Thomson

Mountain Project's determination of the classic, most popular, highest rated climbing routes for Mount Thomson:
East ridge   4th 1 2 I 2 M 1b     Trad   
West Ridge   5.6 4c 14 V 12 S 4b     Trad, 3 pitches, 550'   
Browse More Rock Climbing Classics in Mount Thomson

Featured Route For Mount Thomson
Rock Climbing Photo: Approaching the West Ridge in some fog

West Ridge 5.6 4c 14 V 12 S 4b  Washington : Central-West Cascades & Sea... : ... : Mount Thomson
Start on the ridge slightly to climbers left. Beginning in a short corner/chimney feature....[more]   Browse More Classics in Washington

Photos of Mount Thomson Slideshow Add Photo
Rock Climbing Photo: The lower half of Mt Thompson, right before "...
BETA PHOTO: The lower half of Mt Thompson, right before "...
Rock Climbing Photo: Beautiful water source below Mt Thompson
Beautiful water source below Mt Thompson

Comments on Mount Thomson Add Comment
Show which comments
By Andrew Shoe
From: Graham, Washington
Jun 24, 2015
It is actually 9 miles from thee TH to the base of the climb (unless you do some mild bushwhacking through to one of the alternate routes wich shaves off miles but imo doesnt shave off any time.
By Jennifer L
Aug 22, 2015
USGS maps show 'Mount Thomson', and many guidebooks (including Selected Climbs in the Cascades and Beckey's Cascade Alpine Guide) call this 'Mount Thompson.'
By Jon Nelson
From: Bellingham, WA
Aug 22, 2015
Jennifer -- do you have the source of the name, or an older reference to it?

I get confused looking this peak up on the Internet, as it gets listed a lot as Thompson. I don't have the Beckey guide handy, but I'll change the posted name if Beckey says so..

By Leslie Otto
Aug 23, 2015
It's on the Green Trail Maps as Mount Thomson, just climbed it two days ago. I also read on summit post that it was named after R.H. Thomson, a seattle engineer. In the older versions of Fred Beckys Cascade Alpine Guide it was also mispelled but has since then been corrected.
By Jon Nelson
From: Bellingham, WA
Aug 23, 2015
It's now corrected. Thanks a lot for the input.
By Jennifer L
Aug 25, 2015
Jon, I was mistaken. So, Leslie is right - USGS and Green Trails do show this peak as Thomson. But the latest Beckey CAG, Selected Climbs, and a few other guidebooks show this as Thompson. I've amended my comment above. How confusing!
By Jon Nelson
From: Bellingham, WA
Aug 25, 2015
OK, so now you're just trying to get me confused. Well, I won't have it. It's going to be the Seattle engineer as the officially true story whether or not that's the way it really went down.

From Reginald H. Thomson's Wikipedia page:

"Reginald Heber Thomson (usually R.H. Thomson; 1856 – January 7, 1949) was a self-taught American civil engineer. He worked in Washington state, mainly in Seattle, where he became city engineer in 1892[1] and held the position for two decades. Alan J. Stein wrote that Thomson "probably did more than any other individual to change the face of Seattle" and was responsible for "virtually all of Seattle's infrastructure".[2]
Despite the scope of his work, no major portion of Seattle's infrastructure has ever carried Thomson's name. He was supposed to have been memorialized by the R.H. Thomson Expressway, proposed in 1960 but never built.[1][3]
Among his achievements were the railway route through Snoqualmie Pass,..."

So there we have the Snoqualmie Pass connection. And we all learned a little Seattle history...

Rock Climbing Photo: R.H. Thomson, Seattle engineer (Wikipedia Commons)
R.H. Thomson, Seattle engineer (Wikipedia Commons)

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