3.2 miles one -way (plus 3.2-mile return to trailhead)
From: Lucas Valley Road
To: H Ranch in Nicasio
Climb through grassland and some woodland to 1,800-foot Big Rock Ridge, the second-highest peak in Marin County. From here you can take in stellar views of Marin’s mountains and valleys. The route is situated mostly on a well-graded singletrack trail, except for the fire road at the top, which has some steep sections. This is an exposed south-facing slope and all uphill, best traveled on cool mornings in summer or bright sunny days in winter.
The main trail is a beautiful example of professional trail design, thanks to our Trail Steward, John Aranson.
Elevation Gain 1,115 feet one-way
OuterSpatial Mobile Map: Click Here
Must have the OuterSpatial app for the link to take you directly to the mobile map page.
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.
The Bay Area Ridge Trail Council is a registered 501(c)(3) nonprofit under EIN 94-3148503.
Donations are tax-deductible to the fullest extent allowable under the law.
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