Loma Alta is a Marin County landmark and one of the county's highest peaks. It divides the county's four major watersheds: Miller, Corte Madera, Lagunitas, and Nicasio Creeks. It's a steep, rocky, and exposed old ranch road, best traveled on cool mornings in summer or bright sunny days in winter.<br><br>This trail description is excerpted from the 2019 Bay Area Ridge Trail Guidebook. For details on all trails, trailheads and more <a rel="nofollow" target="_blank" href="https://www.wildernesspress.com/product.php?productid=16685&cat=0&page=1&utm_source=BARTsite&utm_medium=website&utm_campaign=BayAreaRidgeTrail">buy the book</a> from Wilderness Press.
Looking West
Horse Trough
Junction with Fire Road
Looking South
Miller Creek - First Bridge
Miller Creek - Second Bridge
Buck's Bypass (stay right)
Heading East
Cattle Gate (summit in the distance)
Big Rock
Looking South — San Francisco in the Distance