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United States
Oregon
Klamath County

Mount Thielsen Wilderness

The best walks and hikes in Mount Thielsen Wilderness

5.0

(3)

41

hikers

5

hikes

Hiking in Mount Thielsen Wilderness offers diverse experiences across its dramatic volcanic landscapes and extensive trail system. The region is characterized by high alpine forests, open meadows, and rugged glacial formations, with elevations reaching over 9,000 feet. Numerous streams and serene alpine lakes are also prominent features within this ecologically rich environment.

Best hiking trails in Mount Thielsen Wilderness

  • The most popular hiking route is Mount Thielsen Trail, a 9.0 miles (14.5 km) trail that takes 6 hours 6…

Last updated: July 8, 2026

4

hikers

#1.

Tipsoo Peak Trail

10.1km

03:11

430m

430m

Embark on the Tipsoo Peak Trail, a moderate hike that spans 6.3 miles (10.1 km) and involves a climb of 1403 feet (428 metres), typically taking around 3 hours and…

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Moderate

5.0

(1)

23

hikers

14.5km

06:05

1,030m

1,030m

The Mount Thielsen Trail offers a challenging ascent through Southern Oregon's Umpqua National Forest, transforming from dense forests of mountain hemlock and fir into exposed, rocky terrain above the timberline.…

Hard
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6.27km

01:58

410m

30m

Embark on a moderate hike up Cowhorn Mountain, a 3.9-mile (6.3 km) route that challenges you with 1330 feet (405 metres) of elevation gain, typically completed in about 1 hour…

Moderate

5.0

(2)

3

hikers

18.0km

04:36

70m

70m

Embark on the Diamond Lake Loop for a refreshing hike around the scenic lake, offering continuous views of the water and distant mountains. This moderate route spans 11.2 miles (18.0…

Moderate

11

hikers

18.3km

06:10

920m

920m

Embark on the challenging Mount Bailey Trail, a difficult hike spanning 11.4 miles (18.3 km) with a significant elevation gain of 3011 feet (918 metres). You can expect this route…

Hard

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Tips from the Community

evan raymond spitzer
March 6, 2023, Tipsoo Peak Summit

This is a lesser known Cascade peak despite its 8000 ft (2449 m) height. This peak is somewhat unique in the relative lack of a treeline, which rarely grow past 6-7000 ft (1800-2100 m). Enjoy the views of other peaks, such as Mt. Thielsen and the Three Sisters. Tipsoo is the Chinook word for 'grass' or 'hair'.

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Keep your eyes out for views of Mt. Bailey, as well as deer and waterfowl, as you wander through the lodgepole pines and meadows along this high elevation mountain lake.

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Excellent view of Mt. Thielsen, also known as Big Cowhorn.

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Beautiful view of the lake nearby the South Shore Picnic Area.

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Around 290,000 years old the extinct shield volcano known as Mount Thielsen stands out as a prominent landmark with an elevation of 9,184 ft (2,799 m). Informally known as Big Cowhorn, Polish explorer Jon Hurlburt renamed the volcano after Hans Thielsen, a railroad engineer and builder. The Klamath name for the peak is hisc’akwaleeʔas. It is said that the horn-like spire of Mount Thielsen is struck by lightning more often than any other High Cascade peak, hence the nickname, The Lightning Rod of the Cascades!

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At 8,375 ft (2,553 m) Mount Bailey is part of the Cascade Mountain Range. Atop the 2,000 ft (610 m) tephra cone there are great views of Mount Thielsen's pointy spire, as well as Crater Lake, Diamond Lake, Mount Shasta, Three Sisters, and Diamond Peak. The name Bailey might have been a drafting error misspelling of Old Baldy. The Klamath name for the mountain is Youxlokes, meaning Medicine Mountain.

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Frequently Asked Questions

How many hiking trails are available in Mount Thielsen Wilderness?

The Mount Thielsen Wilderness offers a selection of 5 curated hiking routes on komoot, ranging from moderate to difficult. These trails allow you to explore the dramatic volcanic landscapes and diverse ecosystems of the region.

What are the difficulty levels of the hikes in Mount Thielsen Wilderness?

You'll find a mix of challenges here. There are 3 moderate routes, such as the Tipsoo Peak Trail and the Diamond Lake Loop, which are great for a solid day out. For those seeking a greater challenge, there are 2 difficult trails, including the demanding Mount Thielsen Trail.

Are there any challenging hikes for experienced trekkers?

Absolutely. For experienced hikers, the Mount Thielsen Trail is a demanding 14.5 km route with over 1,000 meters of elevation gain, leading towards the iconic spire-shaped summit. Another challenging option is the Mount Bailey Trail, covering over 18 km with significant elevation changes.

What kind of landscapes and natural features can I expect to see?

The wilderness is defined by its dramatic volcanic terrain and glacial formations. You'll traverse high alpine forests, open meadows, and encounter serene alpine lakes like Maidu Lake and Lake Lucile. The area is also known for its vibrant wildflower displays in late spring and early summer, and the prominent Mount Thielsen itself offers incredible panoramic views.

What is the best time of year to hike in Mount Thielsen Wilderness?

The prime hiking season is typically late spring through early fall (June to October). During this period, snow has usually melted from most trails, wildflowers are in bloom, and the weather is generally favorable. Winter hiking is possible but requires specialized gear and experience due to snow and ice.

Are there any loop trails in the Mount Thielsen Wilderness?

Yes, the Diamond Lake Loop is a notable circular route, offering a moderate 18 km journey around the picturesque lake. This trail provides a relatively flat experience with minimal elevation gain, making it a great option for a longer, scenic walk.

Are there any family-friendly hiking options?

While many trails in the wilderness are moderate to difficult, shorter sections of routes or trails around lakes like Lake Lucile (which has a pleasant 0.7-mile path) can be suitable for families looking for a less strenuous outing. Always check the specific trail details for distance and elevation to ensure it matches your family's capabilities.

Can I bring my dog on the trails in Mount Thielsen Wilderness?

Generally, dogs are permitted in the Mount Thielsen Wilderness, which is managed by the U.S. Forest Service, but they must be kept on a leash to protect wildlife and ensure a pleasant experience for all visitors. Always practice Leave No Trace principles, including packing out pet waste.

What do other hikers enjoy most about Mount Thielsen Wilderness?

The area is highly rated by the komoot community, with an average score of 5.0 stars. Hikers often praise the stunning panoramic views from peaks like Tipsoo Peak Summit, the dramatic volcanic formations, and the serene beauty of the alpine lakes and forests.

Do I need a permit to hike in Mount Thielsen Wilderness?

As of current regulations, permits are generally not required for day hiking in the Mount Thielsen Wilderness. However, it's always advisable to check with the U.S. Forest Service for the latest information, especially if you plan an overnight backpacking trip or visit during peak seasons, as regulations can change.

What are some notable landmarks or points of interest to look out for?

Beyond the striking Mount Thielsen itself, hikers can explore the headwaters of the Wild and Scenic North Umpqua River at Maidu Lake, or enjoy the views from Tipsoo Peak Summit. The Pacific Crest Trail also traverses a significant portion of the wilderness, offering a glimpse into this iconic long-distance route.

Most popular attractions in Mount Thielsen Wilderness

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