Mount Thielsen Climber's Log

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jessbee - Mar 9, 2008 10:58 pm Date Climbed: Feb 17, 2008

Snowy wonderland

Perfect weekend for a camping trip. Melting, mixed snow and rock conditions prevented us from climbing the summit block. Super trip.

RyanTaro76 - Mar 5, 2008 1:57 pm Date Climbed: Jun 15, 1999

Favorite Hike Around  Sucess!

I hiked up Thielson three times in school, and photograph it whenever I can get down there. Its profile is so different and almost Alp-like. The view from the top, complete with those white moths, is indescribable. Can't wait to hike it again.


morrison_ryan - Feb 3, 2008 11:03 pm Date Climbed: Jul 7, 2007

Awesome Climb  Sucess!

I loved the scramble at the top. The weather was great, but the mosquitoes were horrible! Definitely recommended.

Adamus - Sep 19, 2007 4:21 am Date Climbed: Sep 2, 2007

West Ridge  Sucess!

Awesome climb! Glad I started early as there were a lot of people on the trail. First one up that day. The Class 4 was pretty easy. The views were great.


mountaingazelle - Sep 18, 2007 2:17 am Date Climbed: Sep 13, 2007

West Ridge  Sucess!

We climbed up the west ridge of Mount Thielsen. The summit pinnacle was a fun scramble and easier than expected. There were good handholds and no need for a rope. Good weather and view from the summit. Nice mountain climb.


YEM - Aug 20, 2007 4:50 pm Date Climbed: Jun 11, 2006

West Ridge  Sucess!

Mazama climb that convinced me that class 4 can be done without a rope here. Of course, it was nice that our leader set a fixed line. If standing on the east side, below the rock, climb up the right side, it's much easier. We avoided a t-storm over Crater Lake, though it did make us nervous.

vancouver islander

vancouver islander - Aug 8, 2007 11:05 am Date Climbed: Aug 3, 2007

Beware of idiots  Sucess!

With fellow V Islanders Graham and Tony and my cousin Patsy from the UK and her husband Keith. Great climb up the W ridge and summit block in under 4h on a perfect day and as the last of a 3 volcano trip.

Soloed and downclimbed the Class 4 summit block with no technical difficulty. Bit stiffer than I expected I must say.

Objective danger was there aplenty, however, in the shape of an unspeakably incompetant and dangerous church group from somewhere in Boondocksville, OR. I'm thinking of entitling the TR "The Power of Faith".

Someone should remove or re-tie the rap station up there. Since we were soloing we had nothing to replace it with and as foreigners, didn't think it our place to remove it. There are two short tapes around the selected horn JOINED by the rap ring! Doh...........


jclements - Aug 2, 2007 12:13 am Date Climbed: Jul 31, 2007

Early up  Sucess!

Dep. TH at 0320, summit by 0650. Headed up to do South Sister in afternoon.


bmwboarder7 - Jul 20, 2007 11:31 pm

Epic Adventure

We snowshoed into treeline in the dead of winter, and dug a snow cave for the night. In the morning we headed for the summit. We ended up ditching our snowboards because of avalanche danger. Then we had to ditch our snowshoes for crampons towards the end as it got steep. Finally we were ice climbing towards the top when we realized it was getting dark, and clouds were moving in. We climbed down (were within 30 ft of the summit) but too slowly, we were caught in a storm. After hours of searching for our stuff, we ended up plowing down towards the treeline for protection. We couldn't find our snowshoes, or our snowcave with our bags. Luckily we had a shovel, so we dug a new cave which we still froze inside (15F). We survived with minor frostbite on one of my toes, and luckily it was sunny the next day so I was able to go back up and find our gear and head home.


thundercloud - May 25, 2007 5:27 pm Date Climbed: Aug 3, 2002

West Ridge  Sucess!

Fun scramble on top.


ibndalight - Feb 1, 2007 9:29 pm Date Climbed: Jan 30, 2006

West Ridge Winter Ascent

Had a great time the route is amazing on the west ridge. Was sick with a chest cold and decied to turn around on the ridge. Stars just went aligned right.

highice - Feb 1, 2007 8:04 pm

winter  Sucess!

nice 5 th class route with some rock fall. climbed in white-out, but cleared in time for a great view!

Matthew Holliman

Matthew Holliman - Dec 1, 2006 3:23 am Date Climbed: Jun 11, 2006

West Ridge  Sucess!

Short hike with a fun scramble up the summit block--much better rock than I was expecting, especially after the loose choss on Three Fingered Jack and Mt. Washington. With Bob and Rick, the last peak of a tour of the OR Cascades.


Andinistaloco - Oct 17, 2006 10:47 pm

Standard route I suppose  Sucess!

Good hike with a fun little scramble at the end. Check out the lightning marks on the summit!


calebEOC - Oct 2, 2006 1:01 am Date Climbed: Oct 1, 2006

Culmination of a summer  Sucess!

The Oregon mountain that most caught my eye when I first started browsing this website several years ago was Mt Thielsen. All summer I put off climbing this one, somewhat intimidated by the climb at the top, after asking Dean and Larry (cascadetraveler) what they thought of the spire I decided to give 'er a shot (thanks for the advice guys!).

The first 3.5 miles went quick, not much elevation gain; the trail was well groomed and easy to follow. The next mile and a half up the ridgeline was a lot of fun. Some places it was so steep I was down on all fours doing all I could to not slide down the mountainside. At the base of the pinnacle I ran into a group of awesome UO instructors who graciously offered me the use of their rope which I declined. The climb up and down the pinnacle was a breeze, much, much easier than I built it up to be over a summer of planning on doing this. I am ecstatic to have finally climbed Thielsen, what a great year of hiking this has been.

09/25/2010: Climbed with my brother who hadnt been up here before. Still a fun climb, easier than I remembered!

Bob Burd

Bob Burd - Sep 20, 2006 9:58 pm Date Climbed: Jun 11, 2006

West Ridge  Sucess!

Climbed with Rick Kent and Matthew Holliman, the last of nine days we spent climbing the Oregon volcanoes. Trip Report


eric9262 - Sep 10, 2006 3:48 am Date Climbed: Aug 28, 2005

First timer

My first foray into climbing was a very good experience. Just a few hundred feet below chicken point my awesome little sister said I'm ready to go down. It seemed like a great idea to me since we needed a break and the wind was howling and cold. I'd like to try again but the logistics of getting there from Georgia are not simple. I'm hooked on climbing now-thanks Oregon.


physics - Aug 25, 2006 3:14 am Date Climbed: Aug 23, 2006

Route Climbed: West Ridge  Sucess!

went up this with my little sister's ex-boyfriend. great day with nice views from up top. climbed the summit mass from the notch north of the summit - this is class 4/5 but solid rock.


SawtoothSean - Aug 8, 2006 3:13 am Date Climbed: Aug 1, 2006

Nice Finish  Sucess!

On a visit to Crater Lake I stopped and trail ran the approach and scrambled the summit. The crumbly approach was pretty bad, but best if you stay on the ridge. For the summit I choose a solid Class 4 section to go up and down climb (no rope). Class 3+ could probably be accomplished, but I preferred the most solid looking rock, even though it was slightly more exposed. The Summit views are great and the look down the north side is breathtaking. All in all I was able to get up and back to the car in 2.5 hours.

2skinners - Aug 9, 2006 1:00 am

Re: Nice Finish

Congrats Sean!!
2.5 hours. Boy we really would have slowed you down. Either that or you would have summited 3 times before we were done. Glad you enjoyed it.

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