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Winter Sports

The Shasta-Trinity, Klamath and Modoc National Forests maintains a Tri-Forest Snowmobile Trails system! The Tri-Forest snowmobile trail system links four groomed snowmobile parks to each other within a day's travel to each other. It spans 260 miles of signed trails, offering excellent snow conditions and amazing views. The access roads to the parks and paved parking areas are plowed.

Access the trails from these OSV Staging Areas:

Shasta-Trinity NF

Klamath NF

Modoc  NF

Stay current with weather, trail conditions, and more at the Shasta Avalanche Center.

Skiing/Snowboarding

Cross Country Skiing on the Trinity River Management Unit

Snowmobiling

Enjoy the Tri-Forest Snowmobile Trails of the Shasta-Trinity, Klamath and Modoc National Forests!

Search for Winter Sports Opportunities

Showing: 1 - 3 of 3 results

Hayfork Area

Winter Sports Biking Hiking Horse Riding and Camping Outdoor Science and Learning Picnicking Hunting, Fishing and Shooting
The South Fork Management Unit (SFMU) is based in Hayfork and contains the Hayfork and Yolla Bolla Ranger Districts. The SFMU encompasses over 590,000 acres. Three major streams from the primary…

Mt. Shasta Wilderness

Site Open
Hiking Outdoor Science and Learning Winter Sports Other Climbing and Caving
Mt. Shasta is a popular destination for a wide spectrum of visitors. Some come for the challenge of climbing to the mountain’s summit, some are spiritual seekers drawn to the mountain, and some…

Trinity Alps Wilderness

Hiking Horse Riding and Camping Outdoor Science and Learning Hunting, Fishing and Shooting Winter Sports
The second largest wilderness area in California, the Trinity Alps Wilderness nearly doubled in size by the 1984 California Wilderness Act.  In that same year, it was added to the National…

Last updated April 4th, 2025