Purisima Creek, Grabtown Gulch and Borden Hatch Mill Loop

This moderate 14.6 km (9.1 miles) loop typically takes around 4 hours and 38 minutes to complete. While some shorter loops in the preserve might be quicker, this specific route involves significant elevation changes that contribute to its duration.

The Purisima Creek, Grabtown Gulch and Borden Hatch Mill Loop is rated as moderate due to significant elevation changes, including both descents and climbs. The terrain varies from wide, smooth, dirt-covered paths to narrower singletrack sections. You'll also encounter gravel in steeper areas, especially on the descent of the Grabtown Gulch Trail, which helps with traction.

You'll be immersed in a lush, second-growth redwood forest, featuring towering Coast Redwoods, delicate ferns, and abundant moss. The dense canopy provides extensive shade, and you'll enjoy beautiful views of the creek bed along Purisima Creek. In the mornings, sunlight often breaks through the canopy, creating striking visual effects.

Yes, the trail passes through areas with historical mill sites from the early 1900s redwood logging era. You'll also hike along sections of the Borden Hatch Mill Trail and the Upper Purisima Creek Trail, both offering classic redwood forest experiences.

The trail is enjoyable year-round due to the redwood canopy providing shade. However, after heavy rains, it's known as one of the best places to spot bright yellow California banana slugs. Mornings are particularly beautiful when sunlight filters through the redwood canopy.

Dogs are generally allowed on leash in the Purisima Creek Redwoods Open Space Preserve, but it's always best to check the Midpeninsula Regional Open Space District's official website for the most current regulations regarding specific trails within the preserve.

The Purisima Creek Redwoods Open Space Preserve has designated parking areas. The main trailhead for this loop is typically accessed from the Higgins Canyon Road entrance. Arriving earlier in the day, especially on weekends, is recommended as parking lots can fill up quickly.

No, there are typically no permits or entrance fees required to access the trails within the Purisima Creek Redwoods Open Space Preserve. It is open to the public for recreational use.

Yes, this route incorporates sections of several other trails. You'll hike along parts of the Borden Hatch Mill Trail, Grabtown Gulch Trail, and Purisima Creek Trail. It also intersects with a section of the Bay Area Ridge Trail - 04 - San Francisco and Peninsula.

Beyond the impressive redwood trees, you might spot various bird species, and during certain seasons, particularly after heavy rains, the trail is known for its bright yellow California banana slugs. The secluded nature of the trail also allows for appreciating the sounds of birdsong.

While the initial mile of the Purisima Creek Trail is flat and wide, the overall loop is rated as moderate with significant elevation changes. This might be challenging for very young children or those not accustomed to longer hikes. Consider the fitness level of your family before attempting the full loop.