Trail Restoration at Knoxville Management Area

The Knoxville Management Area provides OHV users with wonderful views of Berryessa Snow Mountain National Monument

Tuleyome is leading a pair of projects to reduce erosion, improve water quality, improve access and recreational opportunities, and protect cultural resources in Berryessa Snow Mountain National Monument’s Knoxville Management Area. The Management Area, midway between Lake Berryessa and Clear Lake on the south side of Berryess Knoxville Road, is popular year-round with off-highway vehicle (OHV) users. There are nearly 100 miles of legal OHV trails in this area, which connect to many more legal trails to the north in the remote uplands.

Funded by Lake Berryessa Watershed Improvement Program (Napa County Measure A) and California State Parks and Recreation's Off-Highway Motor Vehicle Recreation Division's Grants and Cooperative Agreements Program, these combined projects will:

(1) address severe fire damage and associated erosion on two sections of the Bureau of Land Management’s Knoxville Management Area trails, Cedar Creek Trail and a portion of the main trail.


(2) stabilize a failed dam on the adjacent McLaughlin Reserve.

All work will be within the Berryessa Snow Mountain National Monument.

The surrounding landscape was scorched by fires in 2015 and in 2020. Major earthwork to popular trail sections and stabilize water crossings is necessary. Volunteers will be solicited along the way to help with invasive weed control, dispersing native plant seeds, and erosion control at water crossings. The project will stabilize the trails for long-term use while minimizing eroded sediment getting to downstream creeks and Lake Berryessa. In addition to the natural and cultural resource benefits, the work will increase recreational opportunities, increase the safety of these activities, and bring volunteers together to enhance, restore, and enjoy the land.

Tuleyome is grateful to continue and strengthen our partnerships with Napa County, Bureau of Land Management, University of California at Davis, and the OHV community on these efforts.

Contact Nate ( if you would like more information or are interested in volunteering at the site.

Drainage and erosion issues at Knoxville Management Area will be remedied