Big River Trailhead

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.