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Hikes in Glenn County explore a diverse Northern California landscape, from the mountainous terrain of the Mendocino National Forest to the shores of lakes and reservoirs. The region is characterized by a wide range of elevations, with trails running through chaparral, mixed conifer forests, and along volcanic buttes. Many routes are concentrated in the western part of the county, offering access to wilderness areas like Snow Mountain.
Last updated: June 24, 2026
1
hikers
27.4km
09:08
1,350m
1,350m
Hard hike. Very good fitness required. Easily-accessible paths. Suitable for all skill levels.
1
hikers
14.9km
04:45
650m
650m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

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31.4km
09:45
1,200m
1,200m
Hard hike. Very good fitness required. Easily-accessible paths. Suitable for all skill levels.
2.82km
00:46
40m
40m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
7.49km
02:26
370m
370m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
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Popular around Glenn County
The Snow Mountain Wilderness is part of Mendocino National Forest. The area has miles of hiking trails that will take you along the ridges and to the summits for expansive views across the mountains.
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This point on the trail marks the saddle of Snow Mountain East and Snow Mountain West. This rockier area provides excellent views of the surrounding landscape and also offers a variety of route options for trail users.
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Snow Mountain is a peak in the Snowy Mountain Wilderness that technically has three separate prominent points. Snow Mountain East is the highest of the three points while Snow Mountain, itself, is the lowest of the three summits at 6,542 feet.
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Sitting at 3,615 feet, Red Mountain is a great summit to visit with the whole family. With the main approach to the summit coming via an old, double-track forest service road, this peak sees users of different kinds. There are structures at the top marking the peak with views of the surrounding mountains.
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Snow Mountain West sits at an elevation of 7,041 feet. This rockier peak has excellent 360 views of the surrounding mountains of Mendocino National Forest.
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Most of the walking trails around the lake offer intermittent access to the water. This spot on the trail offers access to the water via beachfront access. You can also boat, swim, and kayak in the water. Fishing is another popular activity, both from a boat and from the shore.
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This viewpoint sits on a northeast hillside. The view of the valley includes lakes, alpine ponds, and the peaks of the Snowy Mountains. This spot serves as a quiet escape from the nearby Letts Lake campground.
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The east summit has an elevation of 7055 feet. It is the highest point in both Lake and Colusa counties. From this spot there's an amazing panoramic view.
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Yes, for a short and accessible outing, the Upper Letts Lake Loop — Snow Mountain Wilderness is an excellent choice. At under 2 miles (3 km) with minimal elevation gain, it's perfect for families. Additionally, the trails within the Sacramento National Wildlife Refuge Complex offer flat, easy walks ideal for wildlife spotting with children.
Dogs are generally permitted on trails within the Mendocino National Forest, provided they are on a leash. However, they are not allowed in the Sacramento National Wildlife Refuge to protect the wildlife. Always check specific regulations for the area you plan to visit before you go.
For a strenuous and rewarding challenge, consider the Snow Mountain loop via Deafy Glade Trail — Snow Mountain Wilderness. This is a long-distance loop with significant elevation gain, offering a true wilderness experience for seasoned hikers.
Absolutely. For expansive 360-degree views, the hike to Red Mountain via FSR #130 — Mendocino National Forest is a great option. On a clear day, you can see Black Butte Lake, Lassen Peak, and even Mount Shasta from the summit.
The western part of Glenn County is dominated by the Mendocino National Forest, which contains the Snow Mountain Wilderness. This area is a hiker's paradise, with trails ranging from easy lakeside loops to difficult mountain ascents. A great example of a demanding trek here is the Snow Mountain Wilderness loop — Mendocino National Forest.
Spring and fall are ideal for hiking in Glenn County, offering pleasant temperatures and beautiful scenery. Spring brings vibrant wildflowers, especially around Black Butte Lake and Stony Gorge Reservoir. Winter can be a great time to visit the lower elevation wetlands of the Sacramento National Wildlife Refuge for birdwatching, but higher elevations in the Mendocino National Forest will have snow and may be inaccessible.
While Glenn County is more known for its mountains and lakes, you may find seasonal waterfalls and cascades after heavy rains, particularly in the canyons of the Mendocino National Forest. However, there are no major, year-round waterfalls that are primary destinations for hiking trails in the immediate area.
For most day hiking, you do not need a specific permit. However, a California Campfire Permit is required for using stoves or campfires outside of developed recreation areas. If you plan on backpacking or camping, other regulations may apply. It's always best to check the official Mendocino National Forest website for the most current information before your trip.
The Sacramento National Wildlife Refuge Complex is the premier destination for wildlife viewing. The refuge features several flat walking trails, like the Wetland Walk Trail, and an auto tour route. The best time to visit is from November through February when millions of migratory waterfowl are present.
The terrain is quite varied. In the Mendocino National Forest, expect mountainous trails through chaparral and conifer forests with significant elevation changes. Around Black Butte Lake and Stony Gorge Reservoir, you'll find rolling hills and paths along the shoreline. The eastern part of the county, near the Sacramento River, offers flat, riparian, and wetland environments.
Yes, the area around Black Butte Lake has a network of trails for hiking and mountain biking. These paths offer scenic views of the lake and the surrounding volcanic buttes. The sixteen-mile-long Paul Thomas Trail is a popular, moderately difficult option that circles the lake.


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