Dirt Bike Trails
Near Bloomfield, California

The main connector between the north and south entrances of the Knoxville OHV area. Very active with power sports vehicles, as many marked and unmarked trails crisscross this trail. An easy trail with good views of the mountains, including. Mt. Saint Helena in Napa. It also passes by the only develo...
Learn more about Dunnigan Hill

For expert riders only, this trail is rated extremely difficult. Trail hazards may Include; narrow and steep sections, washed-out sections, fallen trees, and large falling or loose rocks. Boundary Tidge "Trail 25" is an 8-mile route that takes you along the top ridges of South Cow Mountain OHV. The ...
Learn more about Boundary Ridge, Trail 25

Graded dirt road connecting Highway 1 to Highway 128. Pavement is on both ends. A great dirt road with a flowy climb up from the coast to follow the ridge inland. Beautiful views and usually quiet traffic, but please do watch out for some blind corners and the occasional logging truck. Great route t...
Learn more about Fish Rock Road

Walker Ridge Road is one of the main entrances to the Indian Valley Reservoir (CDFW) and the Walker Ridge Recreation Area (BLM). The road is gravel and accessible by most high-clearance vehicles. There are plenty of OHV and 4x4 trails off the main road. Walker Ridge Recreation Area allows all types ...
Learn more about Walker Ridge Road to Indian Valley Reservoir Road

Easy dirt trail with connections to the Berryessa Snow Mountain Monument area Trails with wildflower sights in Spring and the main road to The Wilbur Hot Springs. Beautiful scenery of the Bear Valley in Lake and Colusa Counties in Spring with Bear Creek passing next to the trail. Near the end of the...
Learn more about Bear Valley Road Trail

An easy scenic route over mountain ridges through South Cow Mountain OHV that connects lakeport to Ukiah. This is the main dirt road through cow mountain that has multiple harder trails off either side and has multiple campgrounds that are easily accessible by 2WDd vehicles. There are excellent view...
Learn more about Mendo-Lake Road

Set within an open mountain landscape recovering from the 2018 Ranch Fire with fresh brush regrowth and standing pine snags in the Mendocino National Forest, Pilot Grove (FS 16N01) offers an exceptionally scenic ridgeline drive. Accessed directly from Bartlett Springs Road at Bartlett Mountain Summi...
Learn more about Pilot Grove - FS 16N01

Cold Spring is an inviting off-road spur trail ideal for high-clearance four-wheel-drive vehicles, SxSs, and dirt bikes seeking a quiet mountain escape with panoramic views of the Indian Valley Reservoir. Branching off the county-maintained Bartlett Springs Road near Cold Spring Mountain, this route...
Learn more about Cold Spring

Winding along a high, exposed ridge recovering from the massive 2018 Ranch Fire, with chaparral growth and standing snags in the Mendocino National Forest, Pinnacle Rock (FS 16N01D) offers a brief but visually rewarding mountain excursion. Accessed directly off Pilot Grove Road (FS 16N01), this shor...
Learn more about Pinnacle Rock - FS 16N01D

Bartlett Springs Road begins southeast of Mendocino National Forest and boasts excellent views. This route passes through BLM land, and there are plenty of offshoots from the trail. There are also opportunities for camping, hiking, mountain biking, fishing, hunting, and recreational shooting. Cell s...
Learn more about Bartlett Springs Road

Flowy dirt road that climbs through grassy oak woodlands before entering the redwood forests of the California Coast. Quiet road with minimal obstacles. Currently, there is a bridge on the route that is closed to cars (see photos). Nothing larger than a BMW Adventure bike is going to be able to pass...
Learn more about Low Gap Road

Set along a high, scenic mountain ridge within a forest recovering from the 2018 Ranch Fire with standing pine snags and fresh brush regrowth in the Mendocino National Forest, Linger Longer - FS 17N14 offers an engaging ridge drive. Accessed via Board Camp Ridge Road - FS 17N10, the Mendocino Scenic...
Learn more about Linger Longer - FS 17N14

Out-and-back trail, big dispersed camp area at the end of the trail for multiple vehicles. There are a few spots to pass, and a dirt bike trail is towards the beginning. has a few ledges from erosion and some washes. Toward the end of the trail, before it descends into the camp spot, there is a good...
Learn more about Stony Slope - FS 17N89

Set within a mixed pine, oak, and chaparral forest recovering from the 2018 Ranch Fire in the Mendocino National Forest, New Miner - FS 17N68 provides a scenic backcountry connection. Accessed directly off of Letts Lake Trail near the popular Letts Lake Recreation Area, this 2.0-mile single-lane dir...
Learn more about New Miner - FS 17N68

Set within a mixed pine and chaparral woodland recovering from the 2018 Ranch Fire in the Mendocino National Forest, Miner - FS 17N62 provides a short and scenic mountain drive. Accessed directly off of New Miner Trail, this 1.3-mile round-trip out-and-back dirt spur travels along elevated slopes to...
Learn more about Miner - FS 17N62

Set within a mixed pine timber and chaparral environment recovering from the 2018 Ranch Fire in the Mendocino National Forest, Miner Spur C - FS 17N62C offers a quiet, downhill mountain trip. Accessed directly off of Miner Road - FS 17N62, this 1.2-mile out-and-back dirt spur descends along mountain...
Learn more about Miner Spur C - FS 17N62C

This trail is a little less than 4 miles and leads to Letts Lake and campground. As the only lake in the lower half of Mendocino NF, it is worth visiting. There are four campsites around the lake; each has a handful of first come, first serve sites. You may also swim and fish in the lake.
Learn more about Letts Lake

Set within a scenic mountain pine forest and chaparral understory recovering from the 2018 Ranch Fire in the Mendocino National Forest, Upper Letts Lake - FS 17N09 serves as a pleasant connecting route. Accessed directly from the Letts Lake Campground area, this 2.0-mile single-lane forest road clim...
Learn more about Upper Letts Lake - FS 17N09

Set within a dense chaparral and pine forest recovering from the 2018 Ranch Fire in the Mendocino National Forest, Little Sullivan Ridge - FS 85346 delivers a secluded and heavily sheltered mountain drive. Accessed directly off of Forest Highway M5, this 1.8-mile single-track dirt spur functions as ...
Learn more about Little Sullivan Ridge - FS 85346

Set within a mixed pine and chaparral forest recovering from the 2018 Ranch Fire in the Mendocino National Forest, Miner Spur B - FS 17N62B offers a secluded mountain-side drive. Accessed directly off of Miner Road - FS 17N62 at a distinct Y-split junction, this 1.3-mile out-and-back dirt spur trave...
Learn more about Miner Spur B - FS 17N62B

The main connector between the north and south entrances of the Knoxville OHV area. Very active with power sports vehicles, as many marked and unmarked trails crisscross this trail. An easy trail with good views of the mountains, including. Mt. Saint Helena in Napa. It also passes by the only develo...
Learn more about Dunnigan Hill

For expert riders only, this trail is rated extremely difficult. Trail hazards may Include; narrow and steep sections, washed-out sections, fallen trees, and large falling or loose rocks. Boundary Tidge "Trail 25" is an 8-mile route that takes you along the top ridges of South Cow Mountain OHV. The ...
Learn more about Boundary Ridge, Trail 25

Walker Ridge Road is one of the main entrances to the Indian Valley Reservoir (CDFW) and the Walker Ridge Recreation Area (BLM). The road is gravel and accessible by most high-clearance vehicles. There are plenty of OHV and 4x4 trails off the main road. Walker Ridge Recreation Area allows all types ...
Learn more about Walker Ridge Road to Indian Valley Reservoir Road

Easy dirt trail with connections to the Berryessa Snow Mountain Monument area Trails with wildflower sights in Spring and the main road to The Wilbur Hot Springs. Beautiful scenery of the Bear Valley in Lake and Colusa Counties in Spring with Bear Creek passing next to the trail. Near the end of the...
Learn more about Bear Valley Road Trail

The main connector between the north and south entrances of the Knoxville OHV area. Very active with power sports vehicles, as many marked and unmarked trails crisscross this trail. An easy trail with good views of the mountains, including. Mt. Saint Helena in Napa. It also passes by the only develo...
Learn more about Dunnigan Hill

For expert riders only, this trail is rated extremely difficult. Trail hazards may Include; narrow and steep sections, washed-out sections, fallen trees, and large falling or loose rocks. Boundary Tidge "Trail 25" is an 8-mile route that takes you along the top ridges of South Cow Mountain OHV. The ...
Learn more about Boundary Ridge, Trail 25

Walker Ridge Road is one of the main entrances to the Indian Valley Reservoir (CDFW) and the Walker Ridge Recreation Area (BLM). The road is gravel and accessible by most high-clearance vehicles. There are plenty of OHV and 4x4 trails off the main road. Walker Ridge Recreation Area allows all types ...
Learn more about Walker Ridge Road to Indian Valley Reservoir Road

Easy dirt trail with connections to the Berryessa Snow Mountain Monument area Trails with wildflower sights in Spring and the main road to The Wilbur Hot Springs. Beautiful scenery of the Bear Valley in Lake and Colusa Counties in Spring with Bear Creek passing next to the trail. Near the end of the...
Learn more about Bear Valley Road Trail