Big Tree Loop

Big Tree Loop is a roughly 3-mile loop from Prairie Creek Visitor Center, following Karl Knapp Trail north to Big Tree and returning on Cathedral Trees Trail. It links creekside redwood groves with a darker upland stand, then descends to the visitor center. Allow about two hours. The overall climb is modest, but the Cathedral return is slow underfoot where roots interrupt the path. This is a good half-day forest walk if you want more route variety than a short wayside stroll. A separate 15-minute Circle Trail sits beside Big Tree; it is not included in the mapped loop or its mileage.

Begin at the large sign cluster just right of Prairie Creek Visitor Center. A long wooden bridge crosses Prairie Creek into an old-growth grove; turn right at the first intersection onto Karl Knapp. This opening is wide, level crushed gravel, with enormous trunks and an open understory carpeted with ferns and redwood sorrel. Look toward the creek for moss and lichen on the maples. At the first junction toward Big Tree, take the right-hand branch; it can be easy to pass while looking at the forest. The trail stays lush, but traffic from Newton B. Drury Scenic Parkway carries through some stretches.

Big Tree stands in a small clearing on a wooden viewing platform, added in 2012 to keep feet off its roots. It is a major stop, though the nearby grove gives a better sense of how these old trees fit together than the single trunk alone. Interpretive signs and audio boxes at the wayside play Yurok elders speaking about redwoods. For a useful scale photo, include part of the platform railing with the trunk rather than filling the frame with bark. The short Circle Trail is nearby if you want another 15 minutes among the trees, but it is an optional side walk.

From the Big Tree area, pick up Cathedral Trees Trail and climb into upland redwoods. The canopy feels denser and darker than the creekside grove; trunks are more even-sized and the footing is rougher, with exposed roots that break your stride. Let this section set your pace instead of carrying the easy first-half rhythm uphill. After crossing Cal Barrel Road, descend to the Rhododendron junction and follow the brushy stretch beside Boyes Creek. It can grow over, then opens into a meadow ringed with large redwoods. The route returns toward Newton B. Drury Parkway through a tunnel; follow the trail back to the visitor center rather than improvising a roadside crossing.

Start at the visitor-center sign cluster. Parking on the campground access road is about 100 yards past the building; parking along Newton B. Drury Scenic Parkway is roughly a five-minute walk from the start. Vault toilets are at Big Tree Wayside parking, partway around the loop. Pets are not permitted on park trails. The loop crosses the parkway by Big Tree, so watch for traffic at the road crossing.