San Geronimo Ridge Loop
San Geronimo Ridge Loop
3.3
(30)
78
hikers
01:52
5.91km
240m
Hiking
The San Geronimo Ridge Loop offers a delightful journey through Marin County's varied ecosystems, transitioning from shaded redwood canyons to open grassy hillsides. You'll traverse a mix of wide fire roads and narrower singletrack, with the highlight being the tranquil views of Kent Lake, Marin County's largest reservoir. This easyβ¦
Last updated: June 9, 2026
Tips
Your route passes through protected areas
Please check local regulations for:
Samuel P. Taylor State Park
Waypoints
Start point
Parking
Get Directions
2.63Β km
Highlight (Segment) β’ Viewpoint
Tip by
4.46Β km
Highlight β’ Settlement
Tip by
5.74Β km
Highlight β’ Bridge
Tip by
5.91Β km
End point
Parking
Way Types & Surfaces
Way Types
2.66Β km
1.56Β km
1.37Β km
268Β m
Surfaces
2.66Β km
1.56Β km
935Β m
438Β m
268Β m
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Elevation
Highest point (280Β m)
Lowest point (60Β m)
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Weather
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Today
Tuesday 7 July
19Β°C
10Β°C
0Β %
Additional weather tips
Max wind speed: 21.0Β km/h
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This route was planned by komoot.
This specific loop is approximately 5.9 kilometers (3.7 miles) long and typically takes about 1 hour and 52 minutes to complete at a moderate hiking pace. Keep in mind that your actual time may vary depending on your speed and how often you stop to enjoy the scenery.
This particular San Geronimo Ridge Loop is rated as easy. The terrain is varied, featuring sections of fire roads and potentially some narrower trails. You can expect to pass through lush conifer forests and grassy meadows, with some parts offering views of Kent Lake and the surrounding ridges.
Parking is often available near the Leo T. Cronin Fish Viewing area. However, be aware that parking in this area may have time limitations, especially during fish migration season. It's always a good idea to check local signage for current restrictions before you go.
Specific regulations for dogs on this trail, which is located within the Marin Municipal Water District (MMWD), can vary. It's best to check the official MMWD website or local signage at the trailhead for the most current rules regarding dogs, including leash requirements and permitted areas.
The San Geronimo Ridge Loop is located within the Marin Municipal Water District (MMWD). Generally, there are no entrance fees or permits required for day-use hiking on MMWD lands. However, it's always recommended to check the official MMWD website for any updates on regulations or special requirements.
The route is generally accessible year-round, offering different experiences with each season. Spring brings wildflowers and lush greenery, while fall provides cooler temperatures and potentially clearer views. Even in winter, the trail is usually open, though you might encounter banana slugs after rains.
Along the way, you'll experience diverse scenery including lush forests and open meadows. Key highlights include the San Geronimo Ridge itself, offering occasional overlooks. You'll also pass by Lagunitas Station and cross the Marie Dhority Bridge.
Yes, this route utilizes sections of several other paths. You'll find yourself on parts of the Bay Area Ridge Trail - 01 - North Bay, the Sir Francis Drake Bike Route, the Cross Marin Trail, and the San Geronimo Ridge Road, among others.
The area is rich in nature. After rains, you might spot banana slugs. The creeks in the park are also home to endangered Coho Salmon and threatened Steelhead Trout. Keep an eye out for various bird species and other local fauna.
Given its 'easy' difficulty rating and moderate length of 5.9 kilometers, this specific San Geronimo Ridge Loop can be a good option for families and beginners. The varied terrain keeps it interesting without being overly strenuous, making it a pleasant outdoor experience.
While this specific loop is shorter, the broader San Geronimo Ridge area is known for its rewarding views. Along the partially open ridgetop sections, you may catch glimpses of the surrounding valleys and potentially even Mount Tamalpais on clear days.
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