4.0
(1)
107
runners
28
runs
Jogging in French Ranch Open Space Preserve offers a variety of running routes through diverse natural landscapes. The region features prominent ridges, such as San Geronimo Ridge and Big Rock Ridge, providing elevated views and varied terrain. Runners can also explore areas characterized by redwood groves and the vicinity of Kent Lake, offering a mix of forest and water features. The preserve's trails often include elevation changes, making it suitable for those seeking a challenging workout amidst natural surroundings.
Last updated: May 28, 2026
4
runners
9.00km
01:04
170m
170m
Jog the 5.6-mile Roy's Redwoods and French Ranch Loop, a moderate trail through redwoods, grasslands, and mixed forests.
17.6km
02:27
660m
660m
Difficult 11.0 miles (17.6 km) jogging loop through diverse terrain and scenic views of Kent Lake in the Mount Tamalpais Watershed.

Sign up for free
7
runners
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
8
runners
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
11
runners
11.9km
01:38
400m
400m
If you're ready for a challenging jogging experience, the Big Rock Ridge Trail delivers a difficult 7.4-mile (11.9 km) route. You'll gain 1312 feet (400 metres) in elevation, typically completing…
Get access to more routes and recommendations from other explorers.
Sign up for free
Already have an account?
Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.
Start today with a free account
Your next adventure awaits.
Login or Signup
Big Rock Ridge, a striking ridge near Novato, California, standing as Marin County's second-tallest peak. Spanning 5 miles from northwest to east, it creates a natural boundary for central and southern Marin County. Named after the rock at the base of Big Rock Trail, this ridge promises awe-inspiring views and invigorating trails.
0
0
Upper Peters Dam Road is a well shaded path that partially navigates along Kent Lake shore. On the way out you can see the large dam looming overhead.
0
0
From the high ridge sweeping views open up to both sides, most still densely forested and often covered in morning mist that helps this forest survive despite the long periods without rain.
0
0
Along the trail you'll find redwoods, grasslands, and a nice viewpoint. This trail is pretty heavily trafficked and there is a lot of poison oak in the area.
0
0
This trail, part of the Pacific Coast Bike Trail (PCB), is a fantastic, mostly paved two-lane bike route that follows Lagunitas Creek under towering redwood forests and runs parallel to Sir Francis Drake Boulevard on the other side of the valley. It continues south from the campground all the way to the southern exit of the Park.
0
0
Big Rock Trail cuts through Lucas Valley Open Space to reach the 2nd highest point in Marin County. From later winter through early summer the hills are verdant green and often covered in wildflowers. Bring plenty of water and a wide brimmed hat if it's a warm day as there is little shade, but this means the views are wide open and beautiful.
0
0
There are over 25 running routes available in French Ranch Open Space Preserve, offering a diverse range of experiences from moderate to difficult. The komoot community has mapped 28 routes in total.
While many routes feature elevation changes, there are options that are less strenuous. For a moderate experience, consider the Cross-Marin Trail Bridge – Marie Dhority Bridge loop from Lagunitas, which is 4.2 miles long and takes about 49 minutes to complete. This route offers varied landscapes without extreme difficulty.
The preserve's trails feature a mix of redwood forests, prominent ridges like San Geronimo Ridge and Big Rock Ridge, and open ranch lands. You'll encounter diverse natural landscapes with varying elevation changes, providing both shaded sections and open vistas.
Generally, dogs are permitted on trails in French Ranch Open Space Preserve, but it's always best to check specific trail regulations as some areas may have restrictions or require dogs to be on a leash. Always practice responsible pet ownership.
Yes, many of the running routes in French Ranch Open Space Preserve are loops. A popular option is the Roy's Redwoods and French Ranch Loop, which is 5.6 miles long and guides runners through redwood forests and open ranch lands.
Many trails offer excellent views, especially those along the ridges. The San Geronimo Ridge and Kent Lake Loop provides significant elevation gain with rewarding views towards Kent Lake. You can also find scenic spots like Moon Hill Summit.
Parking availability can vary by trailhead. It's advisable to check specific access points for designated parking areas. Many open space preserves in the region typically offer limited parking, so arriving early is often recommended, especially on weekends.
Spring and fall generally offer the most pleasant running conditions with mild temperatures and vibrant scenery. While winter running is possible, some trails might be muddy after rain. Summer can be warm, so early morning or late afternoon runs are preferable.
French Ranch Open Space Preserve is home to various wildlife. Runners might spot deer, coyotes, and a variety of bird species. Keep an eye out for raptors soaring overhead and smaller mammals in the undergrowth. Always maintain a respectful distance.
While the preserve itself is a natural area, nearby towns and communities surrounding French Ranch Open Space Preserve, such as Lagunitas, offer cafes and small eateries where you can refuel after your run.
The area is highly rated by the komoot community, with an average score of 4.0 stars. Runners often praise the diverse terrain, from redwood groves to open ranch lands, and the challenging elevation changes that offer a great workout amidst natural beauty.
Yes, you can explore areas like Roy's Redwoods Open Space Preserve, which is adjacent to French Ranch. Other points of interest include various trails like the School Trail and the Barnabe Mountain Fire Road Trail, offering different natural experiences.


Browse the best Running Trails & Routes in other regions.