4.8
(96)
1,562
hikers
138
hikes
Hiking around Lucas Valley-Marinwood offers access to diverse natural landscapes within Marin County's open space preserves. The region features rolling hills, dense woodlands, open grasslands, and chaparral, providing varied terrain for outdoor activities. Prominent natural features include Big Rock Ridge, which reaches 1,800 feet (549 m) and offers panoramic views of the Bay Area. The area's ecosystems transition from open grasslands to wooded areas, supporting diverse flora and fauna.
Last updated: April 26, 2026
5.0
(2)
8
hikers
10.0km
03:06
360m
370m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
2
hikers
8.96km
03:14
680m
360m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

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6.30km
02:25
450m
450m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
8.32km
02:34
340m
310m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
921m
00:14
10m
10m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
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Popular around Lucas Valley-Marinwood
Loma Alta literally translates to "high hill" and is the highest point in the Loma Alta Open Space Preserve. A few different dirt roads and trails lead to the bald summit that looks over the surrounding hillsides.
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Embark on an adrenaline-fueled mountain biking adventure through Big Rock. The trail reaches its peak at the towering landmark, a colossal rock that adds a unique touch to the experience. Exercise caution on the descent; the pavement can get slippery, adding an exhilarating challenge to this thrilling ride.
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There is plenty of street parking at this trailhead, with the amazing Big Rock nearby to make it easy to spot. The Bay Area Ridge Trail runs along the ridgelines surrounding the San Francisco Bay area and spans over 500 miles of multi-use trails. This portion offers some of the best views of Marin and the city skyline.
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There is plenty of street parking at this trailhead, with the amazing Big Rock nearby to make it easy to spot. The Bay Area Ridge Trail runs along the ridgelines surrounding the San Francisco Bay area and spans over 500 miles of multi-use trails. This portion offers some of the best views of Marin and the city skyline.
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Be careful on the descent, the pavement can get slippery. This is a great trail access spot for MTB and hiking.
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The highest point along the popular biking route is marked by a prominent large Rock standing near the road. The trailhead for hikes up to the ridge also serves as a good rest stop away from traffic, as the road is otherwise narrow without shoulders.
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As the name implies, a big bolder marks the crest of Lucas Valley Road above Skywalker Ranch, the elusive retreat and production studios of George Lucas and his various film projects.
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Lucas Valley-Marinwood offers a wide selection of routes, with over 90 hiking trails to explore. These range from easy strolls to more challenging climbs, catering to various preferences and fitness levels.
The region features diverse landscapes, including rolling hills, dense woodlands, and open grasslands. You'll find a mix of fire roads and singletrack trails, often traversing chaparral and oak woodlands, especially in areas like the Marinwood Open Space Preserve and around Big Rock Ridge.
Lucas Valley-Marinwood is enjoyable for hiking year-round. Spring brings wildflowers and lush greenery, while fall offers pleasant temperatures and clear skies. Summer mornings are ideal before the heat sets in, and winter can provide crisp air and fewer crowds, though some trails might be muddy after rain.
The trails in Lucas Valley-Marinwood are highly rated by the komoot community, with an average score of 4.8 stars from over 80 reviews. Hikers often praise the well-maintained paths, diverse scenery, and the rewarding panoramic views, particularly from higher elevations.
Yes, Lucas Valley-Marinwood has over 40 easy hiking routes suitable for beginners or those looking for a relaxed walk. These trails typically have minimal elevation gain and cover shorter distances, allowing for a pleasant outdoor experience.
For experienced hikers, there are several moderate to difficult trails. An example is the Goat Trail and Big Cat Trail loop β Lucas Valley Open Space, which covers over 11 km with significant elevation changes, offering a more strenuous workout and rewarding views.
Absolutely. Big Rock Ridge is a prominent natural landmark known for offering some of the most expansive vistas in Marin County. Trails like the Big Rock Ridge Summit β Lucas Valley Preserve lead to breathtaking panoramic views of the surrounding valleys, hills, and even San Pablo Bay on clear days. You can also explore the Big Rock Ridge highlight for more information.
While Lucas Valley-Marinwood itself is more focused on hills and open spaces, nearby areas offer access to beautiful lakes. For example, Phoenix Lake and Stafford Lake Park are popular destinations for walks around water, located a short distance from the main hiking areas.
Beyond the trails, you can explore several natural landmarks. Big Rock Ridge is a key feature, offering stunning views. Other notable peaks in the vicinity include White Hill Summit and Moon Hill Summit, providing diverse natural points of interest.
Yes, many trails in Lucas Valley-Marinwood are designed as loops, allowing you to start and end at the same point without retracing your steps. An example is the Big Rock β Upper Big Rock Trail loop from Marin County, which offers a scenic circular experience.
Many trails within the Marin County Open Space District, which manages much of the area, are dog-friendly, though specific rules may vary by preserve. It's generally recommended to keep dogs on a leash and to check local signage for any restrictions before heading out.
Yes, the region offers numerous family-friendly trails. The easier routes, often through open grasslands or gentle wooded areas, are perfect for families with children. These paths provide opportunities for nature exploration without being overly strenuous.
Parking is generally available at or near the main trailheads for the various open space preserves in Lucas Valley-Marinwood. Specific parking areas can be found near popular access points, but it's always a good idea to arrive early on busy days, especially weekends.


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