High Rock River Trail access provides parking and foot access to High Rock River Bar on the Eel River in Humboldt Redwoods State Park, offering fishing and river recreation opportunities.

The access is located off the Avenue of the Giants (State Route 254) via an unmarked dirt road, with a small parking area near the trailhead.

The trail connects to multiple redwood groves and provides scenic river views, though parking is limited and the access road is unsigned, requiring advance knowledge of the location.