Loma Alta Peak Trail

The full Loma Alta Peak Trail, as mapped, is about 11 km (6.9 miles) and generally takes around 3 hours and 30 minutes to complete. However, there are shorter loops, such as a 3.8-mile option with a steady climb, that can be done more quickly.

The terrain is quite varied. You'll primarily encounter wide-open grasslands, especially on the way to the summit, so be prepared for sun exposure. There are also sections with California bay woods and patches of wooded singletrack. The preserve is crisscrossed by fire roads like Glen Fire Road, Smith Ridge Fire Road, and Old Railroad Grade. Some parts can be rocky, and during winter or early spring, trails may be muddy, and you might need to cross small creeks. Cattle also graze these slopes.

The absolute highlight is the Loma Alta Summit, which offers jaw-dropping 360-degree views of Mount Tamalpais, the San Francisco Bay, and surrounding valleys. On clear days, you can also spot the San Francisco skyline, the Richmond/San Rafael Bridge, and San Pedro Mountain. During the rainy season, you might also discover Fairfax Falls (or Loma Alta Falls) in a shaded grotto.

The main trail to the summit is generally considered a moderate challenge, involving a steady but manageable climb. However, the preserve offers a range of options. For an easier experience, consider paths like the Old Railroad Grade Fire Road along the lower perimeter. Some sections, particularly the Sunrise Fire Road to the summit, can be extremely steep, so beginners might want to choose alternative routes or be prepared for a strenuous climb.

Spring is fantastic for abundant wildflowers like California poppies, lupines, and buttercups. The rainy season (winter/early spring) offers the chance to see Fairfax Falls. For stunning golden light on the grassy hills, reminiscent of Tuscany, September is highly recommended. Be aware that open grasslands mean significant sun exposure, so summer hikes might be very hot.

Yes, dogs are generally allowed on trails within the Loma Alta Open Space Preserve. However, it's always best to check the latest regulations on the Marin County Parks website for specific leash requirements and any restricted areas, especially due to cattle grazing.

No, there are typically no entrance fees or permits required to access the Loma Alta Open Space Preserve for day-use hiking. It's part of the Marin County Parks system, which generally offers free access to its preserves. You can find more information on the Marin County Parks website.

A common starting point is the White Hill Trailhead. There are various access points around the preserve, often with roadside parking or small lots. For instance, the White Hill — Old Railroad Grade upper trailhead is another option. Always check local signage for parking regulations.

Yes, the route utilizes sections of several other trails. It follows a significant portion of the Bay Area Ridge Trail - 01 - North Bay (77%) and the broader Bay Area Ridge Trail (37%). You'll also find it intersects with the Loma Alta Fire Road(N)/Sunrise Fire Road(S) (38%) and the White Hill Trail (25%). A small part also runs along the Sir Francis Drake Bike Route (17%).

Beyond the vibrant wildflowers in spring, the preserve is ecologically significant, serving as an important breeding site for various bird species. You'll also see cattle grazing the slopes, a practice that has continued for over 150 years. The preserve's diverse microclimates support a range of plant life, from open grasslands to California bay woods.

While there are out-and-back options, the most popular and rewarding ways to experience Loma Alta Peak often involve creating a loop by combining various fire roads and trails within the preserve. The Komoot route for the Loma Alta Peak Trail is designed as a loop.