Dirt Bike Trails
Near Rutherford, 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

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

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

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

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

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

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

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

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

This trail used to be longer, but erosion turned it into half just a dirt bike trail. This trial ends at a bit of a turn around that you could unload your bikes and hit the other trails from that point. It's also a connector to the Old Letts Trail. This trail is single vehicle wide, and there are a ...
Learn more about East Letts - FS 17N02k

This trail has many steep sections, including one big hill climb. Depending on the direction traveled, you can bypass that hill climb (bypass not included on guided trail). Single vehicle wide, and some areas are overgrown, causing pinstripes. Lots of off camber and many washes, some deep and some e...
Learn more about Old Letts - FS 17N12

Mostly a wide fire road connecting the road to Potato Hill Trail. There are some small washes, and it narrows at a few sections to one vehicle wide. Good views from the top of the trail. Seasonal close and will close for wet weather. Had a few low-hanging trees and a tree down across the top of the...
Learn more about Sanborn - FS 17N63

The trail immediately starts to climb the ridge. It gets very steep in some sections and requires high clearance to break over drainages, or you'll slide over them. Good views of the canyon and valley once you get high enough. Lots of off-camber areas and washes. The trail is tight and overgrown; yo...
Learn more about Potato Hill - FS 17N12

This trail immediately starts climbing. Has many rolling water drainages and rocky sections. Start to get good views of the canyon as well. Crossing a road and continuing on the other side, it's easy to see and is marked. Good warm-up before going on the Potato Hill trail that gets pretty steep.
Learn more about Champagne - FS 17N79

This is the beginning of the Letts Ridge trail. Past this is only for dirtbikes and other smaller OHV machines. This trail will also take you to the Champagne trail wh8ch also connects to Potato Hill. At the end is a big area to unload to do the rest of the Letts Ridge trail. A lot of whoops-style b...
Learn more about Letts Ridge Trailhead Entrance

This is a semi maintained fire road. From the South end starts out groomed and starts to get narrow on the shelf road. Some overgrown brush to get some pin stripes. There are multiple smaller washouts and one that you need to navigate carefully since the outside is sliding a bit.
Learn more about North Fork - FS 18N03

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

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

This is an out-and-back trail that leads to off-highway specific trails. It is also shared use, so be cautious of others. There are dispersed camp sites along the way, and it ends in a bigger one. The trail is narrow, but it has room for a full-size truck and multiple spots to pull out or turn aroun...
Learn more about Bluejay - FS 17N38

This trail can be accessed by Main Road 306. It goes through private property for a short bit and a water crossing before reaching national forest land. There are many ruts throughout the trail due to water flow and some dips. The trail is nice and easy otherwise. There are beautiful views along the...
Learn more about Open Ridge Black Diamond East - FS 18N02

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

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

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

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

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

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

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

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