San Francisco Peninsula Watershed: Fifield-Cahill Trail
In this remote open space, dedicated volunteers will lead you through dense forests and over hilly grasslands with extensive views of the entire Bay Area. This trip is a unique opportunity to experience the 23,000-acre watershed, a state Fish and Game Refuge and home to the highest concentration of rare, threatened, and endangered species in the Bay Area. The pristine property contains Crystal Springs, Pilarcitos, and San Andreas Reservoirs. See also the nearby outing: Skylawn Memorial Park. • From: Quarry Road in San Mateo • To: Sneath Lane in San Bruno • Length: 12.8 miles one-way (includes 2.9 miles to Sneath Lane trailhead); car shuttle possible. • Elevation Gain/Loss: 1,725 feet/1,490 feet • Accessibility: Hikers, equestrians, and mountain bikers on guided trips only (shuttle return is ar- ranged) (This trail description is excerpted from the 2019 Guidebook. For details on all trails, trailheads, and more, buy the book from Wilderness Press. For more resources to plan your trip, visit our Trail Tools page.)
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