Happenberger Ridge Trail - Pine Mountain Fire Rd

The Carson Falls and Pine Mountain Trail offers a delightful blend of landscapes, guiding you from open, panoramic vistas to the serene, shaded forest surrounding its namesake waterfall. This easy 2.0-mile (3.2 km) hike, with a gentle 299 feet (91 metres) of elevation gain, takes just under an hour, making it an ideal choice for a quick, rewarding outing. You'll traverse varied terrain, from wide fire roads with views of Mount Tamalpais to narrower paths leading to the dramatic multi-tiered Carson Falls.

Parking for the trailhead is typically free and readily available, though it's always wise to arrive early on busy days. The best time to experience Carson Falls at its most spectacular is during the wetter months, generally from late February through spring, when rainfall ensures the cascades are flowing strongly. Remember to bring water, even for this shorter route, especially if you're hiking on a warm day.

This trail is notable for its rich biodiversity, running through the Mount Tamalpais Watershed, an important natural area. The unique serpentine soil supports unusual native plants, and the area is even a breeding site for the rare Foothill Yellow-legged Frog. It's a fantastic option for those seeking a diverse natural experience with panoramic views and a beautiful waterfall highlight.

The San Geronimo Ridge Road via B-17 Trail loop offers a truly diverse hiking experience, winding through lush conifer forests, rocky sections, and open meadows. You'll encounter serene redwood trees and ferns near the trailheads, then climb to enjoy stunning shoreline views across Kent Lake. The route is a difficult 11.4 miles (18.3 km) with 2298 feet (701 metres) of elevation gain, taking about 5 hours and 45 minutes, making it ideal for hikers who appreciate varied terrain and a good challenge.

Planning your visit is relatively simple, as the trail is generally accessible year-round for hikers, gravel bikers, and horseback riders. Dogs are permitted, usually on-leash on trails and under voice command on fire roads. There are no specific permits or fees required, but always remember to bring plenty of water, especially when hiking in warmer weather, as parts of the ridge can be quite exposed.

This trail is notable for its unique pygmy Sargent Cypress forest found on the windswept ridge, where ancient trees are dwarfed by the serpentine soil. Portions of San Geronimo Ridge Road are also part of the larger Bay Area Ridge Trail, offering expansive views and connections to other regional paths. The area boasts a wide variety of trees, including madrone, Douglas-fir, oak, and bay, providing a rich natural environment to explore.

The Bon Tempe Lake & Dam – Alpine Lake - Bon Tempe Dam loop from Mount Tamalpais Watershed offers a truly varied hiking experience, showcasing the diverse ecosystems of Marin County. You'll journey through deep forests with redwoods and Douglas firs, then emerge into open, drier landscapes, all while enjoying continuous, impressive panoramic views of Bon Tempe Lake and Alpine Lake, often with Mount Tamalpais as a stunning backdrop. The terrain shifts from shaded dirt paths to more exposed sections, including a wide, flat walk across the Bon Tempe Dam, providing excellent vantage points over both reservoirs. This difficult 12.0-mile (19.3 km) route with 1802 feet (549 metres) of elevation gain is a rewarding challenge for those seeking a full day of exploration.

Planning your visit requires a parking fee at the Sky Oaks Headquarters entrance, so have that ready. While many trails in the area are dog-friendly, remember that direct water contact is prohibited in these reservoirs, which supply drinking water to Marin residents. For the best hiking conditions and to potentially see wildflowers, spring and fall are ideal times to tackle this extensive loop.

These lakes are a crucial part of the Marin Municipal Water District's system, highlighting the delicate balance between recreation and conservation. Beyond the scenic beauty, the area is a haven for wildlife, with opportunities to spot various bird species like ospreys and bald eagles, making it a prime spot for nature observation. The tranquil atmosphere and ever-changing scenery make this Bon Tempe Lake Alpine Lake Bon Tempe Dam loop hiking guide a must-do for serious hikers in the region.