Mount Thielsen via Mt. Thielsen Trail #1456

5 reviews #1 hike out of 11 in
8.9 mi
Distance
4 hrs 16 min
Time
terrain
3,537 ft
Elev Gain

Overview

This is a difficult out and back trail to Mount Thielsen in Umpqua National Forest.
This trail goes by Lathrop Glacier.

From parking lot to summit, this trail is a little over 4.5 miles. Over that distance, you will gain ~3,170 ft. The first 3.5-4 miles are moderate, taking you through fairly gentle switchbacks. The views of Diamond Lake and Mt. Bailey continue to improve with elevation, and you will traverse through burned areas (popping with wildflowers, depending on the season!).

The official trail will terminate at the intersection with the Pacific Crest Trail. From there you will have excellent views of the peak, Diamond Lake, and Mt. Bailey. If you wish to summit, follow the well defined social trail past the intersection with the PCT. After some short switchbacks along a rocky, exposed ridge, you will start ascending the west/southwest facing talus slope. This has many switchbacks through loose gravel that become less defined as you gain in elevation. This is a very difficult trail with no shade or flat sections.

The last 80 feet to the summit is not advised in icy/snowy conditions. Many people decide to bring rope and harnesses, which is definitely a smart option if you are not a confident scrambler. The spire is exposed on all sides, with the northern face dropping down to Lathrop Glacier. Know your abilities and use good judgment when attempting this summit.

Getting Started

Park at the Mt. Thielson Trailhead parking lot, which is on the right if you are heading north on 138. It will be shortly after the intersection with 230. The trailhead is just past the pit toilet. You will need a Northwest Forest Pass or inter-agency access pass to park. You can also pick up a $5 day pass at any Forest Service ranger station (the closest being the Toketee Ranger Station).

Taking Children

The official trail is of moderate grade and has decent shade. Children would likely do fine with breaks. Summitting (past the intersection with the PCT) with children is NOT recommended, due to steep drop-offs, loose footing, lack of shade, and difficulty of incline.



    Rate this Hike

    user_profile
    2 years, 5 months ago
    Surprisingly fast summit run
    ★ ★ ★ ★ ★

    user_profile stars
    2 years, 11 months ago
    Really great hike with a little bit of rock climbing if you want to summit. Was there in mid September and weather was great overall. Unfortunately some clouds moved in while at the top so no views. But when we were below the clouds you have great views to Crater Lake. Be sure to bring climbing gear (and know how to use it) if you want to get to the top.
    ★ ★ ★ ★ ★

    user_profile
    6 months, 4 weeks ago
    ★ ★ ★ ★ ★

    user_profile
    1 year, 3 months ago

    user_profile
    1 year, 11 months ago
    ★ ★


Public Tracks

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Rrrick 2 years, 1 month ago
Mt Thielsen, No Summit 10/27/19 13:58:58
Started too late for summit. Lunch on the rock "chair" after 800m elevation gain.
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jatinker10 1 year, 3 months ago
Thielsen
First time, solo
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whaskgp 3 years, 2 months ago
Track (9/17/18, 10:06:44AM)
Mt Thielsen, OR
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emagosta 5 months, 1 week ago
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Jared Casper 6 months ago
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silent_creek 1 year, 4 months ago
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akriggs1070 1 year, 5 months ago
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Robert 2 years, 2 months ago
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seanarr07 2 years, 3 months ago
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lucasilling 2 years, 4 months ago
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ssbrooke 2 years, 5 months ago
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mhbond 2 years, 6 months ago
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Mikey Bell 3 years, 5 months ago
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Jon Ellinger 4 years, 10 months ago