3.4
(10)
79
riders
02:11
25.2km
230m
Mountain biking
Explore the Big River Haul Road, a 15.7-mile mountain biking trail in Mendocino Headlands State Park with diverse scenery and terrain.
Last updated: February 26, 2026
Tips
Your route passes through a protected area
Please check local regulations for:
Mendocino Headlands State Park
Waypoints
Start point
Parking
Get Directions
325 m
Highlight • Beach
Tip by
7.52 km
Highlight • River
Tip by
14.4 km
Highlight • Trail
Tip by
25.2 km
End point
Parking
Way Types & Surfaces
Way Types
24.1 km
1.06 km
< 100 m
Surfaces
20.2 km
3.89 km
1.06 km
< 100 m
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Elevation
Highest point (150 m)
Lowest point (0 m)
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Weather
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Today
Wednesday 20 May
21°C
7°C
0 %
Additional weather tips
Max wind speed: 17.0 km/h
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This route was planned by komoot.
You can typically find parking near the entrance to the trail, often close to the mouth of the Big River where it meets the ocean. This area provides convenient access to the start of the haul road.
Yes, the initial miles of the Big River Haul Road are generally considered easy, with minimal elevation change, making it suitable for all skill levels, including beginners and families. However, be aware that the trail becomes significantly more challenging singletrack further in, beyond the 6-8 mile mark.
The main route, as described, is about 25 km (15.5 miles) long and takes approximately 2 hours and 11 minutes to complete on a mountain bike. This duration can vary based on your pace and how far you venture into the more challenging sections.
Initially, the trail is a dirt and gravel road, often doubletrack, following the Big River with very little elevation change. As you go further, particularly around 6 to 8 miles in, the terrain transitions to more technical singletrack, with some sections described as steep and narrow. It can also be prone to flooding after heavy rains.
You'll enjoy picturesque views of the Big River Beach and the Big River estuary, which is a vibrant habitat for birds, seals, and otters. Further upstream, the trail winds through towering redwoods and Douglas firs, past historic dams, old railroad trestle pilings, and submerged old-growth timber. Interpretive panels along the way offer insights into the area's history and ecology.
Yes, the trail is dog-friendly, making it a great option if you want to bring your canine companion along for the ride. Please ensure your dog is under control and follow any local leash regulations.
The trail can be enjoyed year-round, but conditions vary. During or after heavy rains, portions of the trail may be prone to flooding. For the most comfortable experience, consider visiting during drier seasons. Be aware that habitat restoration projects may cause intermittent weekday closures.
The Big River Haul Road itself does not typically require specific permits or fees for access. As it connects to Mendocino Headlands State Park, standard state park regulations apply, but generally, there are no entrance fees for day use at this park.
Yes, the Big River Haul Road is a multi-use trail that connects Mendocino Headlands State Park with Mendocino Woodlands State Park. The route also passes through sections of the Big River Road, High Chutes Road, Pole Line Trail, Ames Lodge Trail, Old Haul Road, and Dry Dock.
Absolutely. While the initial section is easy, the trail transforms into significantly more challenging singletrack beyond the 6-8 mile mark. These sections require more advanced riding skills, featuring steep, narrow, and technical terrain. Longer routes, such as the 30-mile 'Big River Big Loop,' incorporate these sections and are rated as intermediate with substantial elevation gains.
The Big River Haul Road, as a primary path, functions as an out-and-back trail, allowing you to turn around at any point. However, it can be incorporated into longer loop routes by connecting with other trails in the area.