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Hikes in Colusa County explore a diverse landscape, from the wetlands of the Sacramento Valley to the forested mountains of the Mendocino National Forest. The region is characterized by low-lying wildlife refuges along the Pacific Flyway and rugged, remote trails that climb into the Snow Mountain Wilderness. This variety provides a range of environments, including lakeside paths, river walks, and challenging mountain ascents.
Last updated: May 10, 2026
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hikers
14.9km
04:45
650m
650m
Embark on a moderate hike along the Snow Mountain East & West Peaks via Summit Trail, a route that covers 9.2 miles (14.9 km) with an elevation gain of 2122β¦
27.4km
09:08
1,350m
1,350m
Embark on the Snow Mountain Loop via Deafy Glade Trail for a truly demanding hiking experience. This difficult route stretches 17.1 miles (27.4 km) and challenges you with a significantβ¦

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2.82km
00:46
40m
40m
The Basil 'Doc' Raines Memorial Foot Trail invites you to an easy and refreshing hike through varied terrain. You will wander along winding paths, passing through peaceful woodlands and followingβ¦
18.9km
05:27
490m
490m
Hike the difficult 11.7-mile Walker Ridge Trail in Berryessa Snow Mountain National Monument, gaining 1598 feet with diverse views.
31.4km
09:45
1,200m
1,200m
Embark on the Snow Mountain Wilderness loop, a challenging hike that spans 19.5 miles (31.4 km) and climbs 3944 feet (1202 metres). This route takes you through diverse landscapes, fromβ¦
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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 3,587 feet, Cold Spring Mountain is the highest point on Walker Ridge Road. The geographical peak can be obtained by straying off the road on a spur trail lasting about 100 feet, but the views from the road summit are much the same.
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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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The best time to hike depends on what you want to see.
Spring (March-May): This is the prime season for wildflower viewing, especially in areas like Bear Valley, which becomes a carpet of color.
Autumn (September-November): Cooler temperatures make for pleasant hiking conditions in both the valleys and mountains.
Winter (December-February): Ideal for birdwatching at the Colusa National Wildlife Refuge, which hosts vast numbers of migratory birds. Higher elevation trails in the Mendocino National Forest may have snow.
Summer (June-August): The Sacramento Valley can be very hot. For hiking, it's best to head to the cooler, higher elevations in the Mendocino National Forest.
Yes, there are several great options for families. The Upper Letts Lake Loop β Snow Mountain Wilderness is a gentle 1.8-mile (2.8 km) walk around a scenic lake. For a different experience, the Colusa National Wildlife Refuge offers a flat, 1-mile walking trail with boardwalks and overlooks, perfect for kids and birdwatching.
The premier location is the Colusa National Wildlife Refuge. It's a critical stop on the Pacific Flyway and is famous for its immense flocks of ducks and geese, especially in winter. You can explore via a short walking trail or a three-mile auto tour. For more visitor information, you can check the official refuge website.
Dog policies vary by location. In the Mendocino National Forest, where many of the county's mountain trails are located, dogs are generally permitted on trails as long as they are on a leash. However, sensitive areas like wildlife refuges, such as the Colusa National Wildlife Refuge, typically prohibit pets to protect the wildlife. Always check the specific regulations for the park or trail you plan to visit before bringing your dog.
Absolutely. For a demanding trek, consider the Snow Mountain Wilderness loop β Mendocino National Forest. This is a strenuous 19.5-mile (31.4 km) loop with significant elevation gain, offering a true backcountry experience through remote and rugged terrain.
For mountain hikes in the Mendocino National Forest, bring sturdy hiking boots, layered clothing, and plenty of water, as conditions can change and services are nonexistent. In summer, sun protection (hat, sunscreen) is crucial, especially in exposed areas. For walks in the valley or wildlife refuges, comfortable walking shoes are fine, but binoculars are highly recommended for birdwatching.
For panoramic views, the Fiske Peak loop from Glascock Mountain is an excellent choice. This moderate 7.5-mile (12 km) hike involves a good climb and rewards you with expansive vistas of the surrounding landscape from the ridges and peaks.
Colusa County is not primarily known for significant waterfall hikes. The region's hiking is more focused on its rugged mountains, vast wildlife refuges, and scenic river valleys. While some seasonal runoff may create small cascades in the mountains during the wet season, there are no major, named waterfall trails.
Trails in the Snow Mountain Wilderness are generally rugged and remote. They range from well-defined paths to more primitive tracks. Elevation is a key factor; trails can be clear in the foothills while the upper peaks, like Snow Mountain itself, can hold snow well into the late spring or early summer. Always check recent conditions and be prepared for a backcountry environment with limited cell service.
Yes, the Colusa-Sacramento River State Recreation Area is perfect for a peaceful riverside walk. While it doesn't have extensive hiking trails, it offers pleasant paths along the riverbank under the shade of cottonwood trees. It's a popular spot for a leisurely stroll, picnicking, and fishing. For more details on the park, you can visit the official state parks page.
Yes, the Mendocino National Forest and adjacent areas offer trails for OHVs. The Cold Spring Mountain via Walker Ridge OHV Road is one such route that can also be hiked. It's an 11.7-mile (18.9 km) track that follows a road through the area. Always check with the U.S. Forest Service for current regulations and designated OHV routes before you go.


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