Barnabe Mountain Loop via Bill's Trail and Barnabe Fire Road

This challenging loop usually takes around 6 hours and 50 minutes to complete. However, your actual time may vary depending on your pace, stops for views, and fitness level.

The terrain is quite varied. You'll encounter paved sections at the start, dirt trails, and wide fire roads. Bill's Trail offers a more gradual ascent with numerous switchbacks through lush forests, while the Barnabe Fire Road can be steeper and more exposed. Expect some sections to be rutted and potentially muddy in winter and spring.

The loop offers diverse scenery. You'll pass through lush forests with ferns and various trees like Douglas fir and tanoak, especially on Bill's Trail. Highlights include the Marie Dhority Bridge and a Quiet Picnic Spot 🥖🧀🍴. As you ascend, the forest thins, revealing open grasslands and, from the summit of Barnabe Peak, incredible panoramic views of the Marin Hills, Mount Tamalpais, Tomales Bay, and Point Reyes.

This route is rated as 'difficult' due to its significant elevation gain (over 760 meters) and distance (over 22 km). While Bill's Trail offers a more gradual climb, the overall loop is challenging and best suited for experienced hikers with good fitness levels.

The trail is generally dog-friendly, but always check current regulations for Samuel P. Taylor State Park regarding leash requirements and specific trail restrictions before you go.

The trail is accessible year-round. However, for the most pleasant experience, consider hiking in late spring, summer, or fall. Winter and early spring can bring muddy and rutted sections, though you might see unique wildflowers during these seasons.

The loop typically starts from the Devil's Gulch area within Samuel P. Taylor State Park. There are parking facilities available at the trailhead. Arriving earlier in the day, especially on weekends, is advisable to secure a spot.

Generally, no special permits are required for hiking this loop. Samuel P. Taylor State Park typically has a day-use fee for vehicle entry, which helps maintain the park facilities. Check the official park website for the most current fee information.

Yes, this route incorporates sections of several other trails. You'll find yourself on parts of the Bay Area Ridge Trail - 01 - North Bay, Cross Marin Trail, Sir Francis Drake Bike Route, Bolinas Ridge Trail, and of course, Bill's Trail and Barnabe Fire Road.

The diverse environment supports various wildlife and plant species. In lower sections, you might spot young trout in pools. The forests are home to Douglas fir, tanoak, California bays, and ferns. During winter, look for flowering currants, gooseberry, and early milkmaids. The trail is suitable for general wildlife observation, so keep an eye out for local fauna.

While the loop can be hiked in either direction, many hikers find ascending via Bill's Trail (which is more gradual with switchbacks) and descending via the steeper Barnabe Fire Road to be a good strategy. This allows for a more comfortable climb through shaded forest and a quicker, more exposed descent with expansive views.