3.1
(3)
87
hikers
Big River Haul Road
05:31
21.3km
130m
Hiking
The Big River Haul Road offers a unique hiking experience through the stunning Big River estuary, where ancient redwoods meet the Pacific. You'll follow a mostly flat dirt and gravel path, passing through shaded forests and catching glimpses of wildlife like sea otters and harbor seals. The route, which stretches for 13.2 miles (21.3 km) with a modest 420 feet (128 metres) of elevation gain, is rated difficult primarily due to its length, making it a rewarding challenge for those seeking a long, scenic walk that takes around 5 hours and 30 minutes.
Planning your visit is straightforward, as the trail is accessible year-round from the Big River Trailhead, where parking is available. This multi-use path is also a fantastic option for dog owners, provided your furry friend stays on a leash. The trail's flat profile and barrier-free access make it suitable for a wide range of users, including those with wheelchairs, ensuring everyone can enjoy its natural beauty.
What truly sets this trail apart is its rich history as a former logging haul road, now preserved as a vital part of Mendocino Headlands State Park. The conservation efforts by the Mendocino Land Trust transformed this area into the Big River Estuary State Marine Conservation Area, protecting one of northern California's longest undeveloped estuaries. As you hike, you'll encounter remnants of this past, such as old railroad trestle pilings, adding a fascinating historical dimension to the natural wonders of the towering redwoods and diverse wildlife.
Last updated: June 9, 2026
Waypoints
Start point
Parking
Get Directions
102 m
Big River Beach
Highlight • Beach
Tip by
384 m
Big River Trailhead
Highlight • Trail
As you explore this scenic trail, you'll meander through a magnificent forest of towering redwoods. Along the way, you'll be treated to unparalleled views of the river and surroundings.
Tip by
10.6 km
Big River Road Junction
Highlight • Trail
If you're approaching from High Chutes Road or Old Haul Road, simply go straight to continue your journey to Big River Beach
Tip by
21.3 km
End point
Parking
Way Types & Surfaces
Way Types
20.6 km
639 m
Surfaces
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Elevation
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Weather
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Today
Thursday 9 July
16°C
10°C
0 %
Additional weather tips
Max wind speed: 22.0 km/h
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This route was planned by komoot.
Frequently Asked Questions
What is the typical difficulty level of the Big River Haul Road trail?
Despite some classifications, the Big River Haul Road is generally considered an easy trail for hiking. It is largely flat with minimal elevation gain, following the Big River. The path consists mostly of a dirt and gravel road, making it accessible for various activities.
How long does it take to hike the Big River Haul Road?
A full out-and-back hike along the entire 21-kilometer (13-mile) route typically takes around 5 to 6 hours to complete, depending on your pace and how often you stop to enjoy the scenery.
What kind of terrain can I expect on the route?
The trail primarily features a dirt and gravel road, much of which is doubletrack. Further inland, some sections transition into singletrack. It's mostly flat and meanders through redwoods and under tree canopies, offering a generally shaded experience.
What are the main points of interest along the Big River Haul Road?
The route offers picturesque views of the Big River estuary, home to diverse wildlife like sea and shore birds, otters, and seals. You'll also pass through towering redwoods and Douglas firs. Notable points include Big River Beach at the start, the Big River Trailhead, and the Big River Road Junction. Keep an eye out for historic logging remnants like old railroad trestle pilings.
Is the Big River Haul Road trail dog-friendly?
Yes, the trail is very dog-friendly! However, please ensure your dog remains on a leash to protect the local wildlife and ensure a pleasant experience for all trail users.
Where can I park to access the Big River Haul Road?
The primary access point is at the Big River Trailhead, which is located near Big River Beach. There is parking available at this location, making it convenient to start your adventure.
What is the best time of year to visit the Big River Haul Road?
The trail is enjoyable year-round. During appropriate seasons, you can observe wildflowers, ferns, and blackberries. The shade from the tree canopy makes it pleasant even on warmer days, and the estuary views are beautiful in any season.
Are there any permits or entrance fees required for this trail or Mendocino Headlands State Park?
No, there are no specific permits or entrance fees required to hike the Big River Haul Road trail or to access Mendocino Headlands State Park. It's freely accessible for public enjoyment.
Does the trail connect with other paths?
Yes, while the main route is the Big River Road, it also intersects with other paths. You'll find sections that connect to the Pole Line Trail, Ames Lodge Trail, and Dry Dock, offering opportunities to explore further.
Is the Big River Haul Road accessible for people with mobility challenges?
Yes, recent initiatives have improved accessibility. There is a new barrier-free entrance, making it easier for individuals using wheelchairs to enjoy sections of the trail, particularly closer to the trailhead.
What kind of wildlife can I expect to see along the river?
The Big River estuary is a vibrant habitat. Keep an eye out for a diverse range of sea and shore birds, playful sea otters, and adorable harbor seals in the river. Further inland, you might spot various forest creatures.
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