4.8
(86)
1,139
hikers
2
hikes
Dog friendly hiking trails in Roy'S Redwoods Open Space Preserve offer a diverse landscape characterized by ancient redwood groves, open grasslands, and varied woodlands. The preserve features a well-developed trail system that winds through serene forest environments, past seasonal creeks, and across meadows. Hikers can experience both dense forest sections and more open terrain, with some paths leading to ridgelines offering panoramic views. This region provides a tranquil setting for outdoor activities, combining majestic trees with diverse flora and fauna.
…Last updated: July 8, 2026
5.0
(1)
10
hikers
14.8km
04:20
400m
390m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
2
hikers
17.9km
05:21
520m
530m
Hard hike. Very good fitness required. Easily-accessible paths. Suitable for all skill levels.

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1
hikers
15.2km
04:41
530m
520m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
6
hikers
2.34km
00:59
310m
0m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
5.0
(5)
111
hikers
11.2km
03:37
450m
450m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
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The Rock Spring Trailhead offers picnic tables, good parking, and bathroom facilities. Open 24 hours, this trailhead is frequently used for quick access to the Rock Springs Trail, making it a convenient trailhead.
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Don't be fooled, 'Alpine Lake' is the name of this body of water, but the fact that it is an alpine lake is highly debatably at a lowly 768 feet. Irregardless, the views are still nice. You can look but not touch as there is no swimming or boating allowed in the lake.
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The Lagunitas Dam, completed 151 years ago, was built in less than four months and was 480 feet long with a crest of 20 feet. The purpose was to supply development in the San Rafael area. Its current capacity is 350 acre-feet or 114 million gallons. Lake Lagunitas is one of seven Marin Municipal County Reservoirs, and the combined rainfall collected from these reservoirs makes up around 75 % of the district's water supply.
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Don't be fooled, 'Alpine Lake' is the name of this body of water, but the fact that it is an alpine lake is highly debatably at a lowly 768 feet. Irregardless, the views are still nice. You can look but not touch as there is no swimming or boating allowed in the lake.
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This is a beautiful small lake. Quite a delight to ride here!
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Very strenuous and technical hike but beautiful. Dog friendly.
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Covered shelter hut, picnic tables, restroom, and parking.
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Shaded picnic platform overlooking the lake and some interesting display of low-tech dam water management infrastructure.
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Yes, Roy's Redwoods Open Space Preserve is known for being very dog-friendly. Dogs are generally welcome on trails, but it's always best to keep them on a leash to protect wildlife and ensure a pleasant experience for all visitors. The preserve offers a variety of trails suitable for walks with your canine companion.
Early spring is often considered the optimal time for a visit, offering beautiful blooming wildflowers and pleasant, cooler temperatures. While the redwood groves remain cool, summer months can be hot and dusty in exposed areas. Winter and early spring visits might encounter muddy conditions due to rain and horse traffic on some trails, so be prepared for that.
Absolutely. For an easy stroll, the Boardwalk Trail near the entrance offers a gentle path directly into the redwood forest. Newly installed boardwalks help keep paws dry in muddy areas. The Roy's Redwoods Loop Trail, at about 3 miles, is also mostly level and provides an immersive journey through the ancient groves, making it a great option for a relaxed walk with your dog.
Roy's Redwoods is renowned for its secluded, virgin stand of old-growth redwoods, some over 300 years old, creating a serene and magical forest environment. You'll also encounter diverse trees like Douglas fir, California bay, madrone, and oaks. The forest floor is rich with ferns and moss. Beyond the dense forests, there are open grasslands that burst with wildflowers in spring. Larsen Creek and several seasonal creeks flow through the preserve, adding to the varied landscape.
For a more strenuous hike, consider the David Hansen Trail, which ascends through a beautiful forest of madrone, California bay, and Douglas fir, leading to the ridgeline. Another option is the Dickson Ridge Fire Road, which is a steeper path providing substantial elevation gain and offering superb panoramic views of the rolling hills and surrounding valley. These trails are great for dogs who enjoy a good climb.
The area is highly rated by the komoot community, with an average score of 4.875 stars from 78 ratings. Reviewers often praise the preserve's peaceful atmosphere, the majestic old-growth redwood groves, and the well-maintained trails. Many appreciate it as a less crowded alternative to other redwood parks, offering a true sense of solitude and natural beauty.
Yes, there is a main parking lot located at the entrance to Roy's Redwoods Open Space Preserve, off Nicasio Valley Road. This provides convenient access to the trailheads, making it easy to start your hike with your dog.
The Wilderness Way is a unique spur trail that encourages an interactive experience, inviting hikers to "balance, scramble, and hop" along its path. It also features a designated fort-building area, which can be a fun diversion for families and their dogs.
Yes, Roy's Redwoods offers connections to the adjacent Maurice Thorner Memorial Open Space Preserve and a former golf course property, allowing for extended hikes through more open terrain. Additionally, the Valley Trail links Roy's Redwoods to French Ranch Open Space, providing options for longer adventures with your dog.
The preserve is a haven for wildlife. Common sightings include red-tailed hawks, woodpeckers, deer, coyotes, and various songbirds. If you're lucky, you might even spot a California giant salamander, especially near the creeks. Remember to keep your dog leashed to ensure the safety of both your pet and the local wildlife.
Yes, both the Mossy Rocks Trail and the Forest Trail offer routes that lead directly through the heart of the redwood grove. The Mossy Rocks Trail also provides a descent into a redwood canyon, offering a deeper immersion into the ancient forest environment.


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