Loma Alta and Bay Area Ridge Trail Loop

Parking is available at the Bay Area Ridge Trailhead, which serves as a convenient starting point for this loop. You can also find parking options near the Loma Alta Open Space Preserve.

This loop is generally rated as difficult due to its significant elevation changes and strenuous sections. While some climbs are manageable, it requires good fitness and sure-footedness, making it less suitable for beginners looking for an easy jog.

The trail primarily follows fire roads through open grasslands and California bay woods. Expect steep and strenuous sections with significant climbs and descents. Parts can be rocky and exposed, especially old ranch road sections. In winter, areas near creekbeds can become very muddy.

Joggers are treated to spectacular Bay Area views. From the summit, you can enjoy panoramic 360-degree vistas that may include the San Francisco skyline, San Pablo Bay, Mount Diablo, and Mount Tamalpais on clear days.

Yes, dogs are generally allowed on this multi-use trail. However, specific regulations regarding leashing (leashed or voice command) may apply to different sections within the Loma Alta Open Space Preserve, so it's best to check local signage.

The trail offers different experiences throughout the year. Winter and early spring can be ideal for spotting wildflowers and potentially the Fairfax Falls, but be prepared for muddy conditions. Clear days offer the best views. Summers can be hot and exposed, so an early start is recommended.

Generally, there are no entrance fees or permits required to access the Loma Alta Open Space Preserve or the Bay Area Ridge Trail sections within it. However, it's always a good idea to check the Marin County Parks website for any updated regulations or specific area restrictions.

This route is an important link in the larger Bay Area Ridge Trail network. You'll traverse the Loma Alta Sunrise Fire Road and sections of the 680 Trail. Historic elements like the Old White Hill Grade, dating back to 1874, add to its character. During the rainy season, you might also see Fairfax Falls.

Yes, this loop intersects with several other paths. It utilizes significant portions of the Bay Area Ridge Trail - 01 - North Bay and the Bay Area Ridge Trail itself. You'll also find sections of the Lucas Valley Bike Route, Solstice, Loma Alta Fire Road, and the 680 Trail.

The open grasslands are important breeding sites for birds like horned larks and western meadowlarks, while forested canyons host western bluebirds. You might also encounter cattle, which have grazed these slopes for over 150 years.

Be prepared for strenuous climbs, with one segment gaining 900 feet over 4.2 miles. The trail can be rocky, so sure-footedness is key. Starting early on warm days is advisable due to exposed sections. In winter, wear appropriate footwear for potentially muddy conditions.