Big Trees & Bay Area Ridge Trails loop — Indian Tree Open Space Preserve

Parking is available at the Indian Tree Open Space Preserve trailhead. It's generally a quieter preserve, so parking is usually manageable, but it's always a good idea to arrive earlier on busy days.

Yes, the preserve is dog-friendly. However, please ensure your dog is kept on a leash to protect wildlife and for the safety of other trail users, including equestrians.

The trail offers diverse scenery year-round. Spring brings wildflowers and lush greenery, while fall provides pleasant temperatures and changing foliage. Summer can be warm in open sections, so an early start is recommended. Winter offers cooler, often misty conditions, which can be quite atmospheric in the redwood groves.

No, there are no permits or entrance fees required to access the Indian Tree Open Space Preserve or to jog this loop.

The loop features a varied terrain, including a mix of fire roads and single-track paths. You'll encounter rolling hills, some steadily climbing singletrack, and descents. While the Big Trees Trail section has been rerouted with switchbacks to make the ascent "perfectly graded," the Bay Area Ridge Trail portion is noted as a "moderately tough stretch." Be prepared for inclines and descents throughout.

This loop offers a diverse and beautiful landscape. You'll jog through shady redwood groves, open meadows, and forests of California bay, oaks, and madrone. Look for ferns and towering redwoods, including pockets of old-growth trees and a "funky giant redwood." Higher elevations provide stunning ridgeline views and panoramic vistas, potentially including San Pablo Bay.

Yes, the route is part of the larger Bay Area Ridge Trail system and also passes through sections of the Big Trees Trail. Other official trails along this route include the Upper Meadow Trail, Indian Tree Fire Road, Deer Camp Trail, and Little Mountain Trail.

Given its distance of over 20 km (12.5 miles) and significant elevation gain of over 570 meters, this loop is rated as difficult. While some sections are well-graded, the overall length and climbs make it more suitable for experienced joggers looking for a challenging workout rather than beginners.

Restrooms and water sources are generally limited or unavailable directly on the trail within the preserve. It's advisable to use facilities before starting and carry sufficient water for the entire duration of your jog, especially given the trail's length and difficulty.

For this challenging loop, bring plenty of water, especially on warmer days. Wear appropriate trail running shoes with good grip, as the terrain varies. Layers of clothing are recommended due to changing temperatures between shaded groves and open ridgelines. Sunscreen, a hat, and snacks are also good to have.

The Indian Tree Open Space Preserve is located near Novato, California. You can find various cafes, restaurants, and other amenities in Novato before or after your jog. The preserve itself is more focused on natural immersion, so plan for services outside the park.