Hamms Gulch to Spring Ridge Loop
Hamms Gulch to Spring Ridge Loop
3.0
(21)
68
hikers
Hamms Gulch to Spring Ridge Loop
03:10
10.3km
390m
Hiking
Embark on the Hamms Gulch to Spring Ridge Loop, a moderate hiking adventure that takes you through the varied landscapes of Windy Hill Open Space Preserve. This 6.4-mile (10.3 km) route offers a rewarding experience, guiding you from the cool, shaded redwood and bay laurel groves of the gulches to the expansive, grassy ridges. You will gain 1275 feet (389 metres) in elevation, and the journey typically takes around 3 hours and 9 minutes to complete, culminating in panoramic views from the Windy Hill Summit that stretch across the San Francisco Bay and the Santa Cruz Mountains.
When planning your visit, be aware that the Hamms Gulch Trail can become quite muddy during the wet winter months. Conversely, sections of the Spring Ridge Trail may have rutted paths with loose gravel when dry, so choose your footwear accordingly. Parking is generally available at the trailhead, but it is always a good idea to check local regulations before you go. Remember that some wider parts of the trail are multi-use, meaning you might share the path with horseback riders and mountain bikers.
This loop is particularly notable for showcasing nearly all of Windy Hill's diverse ecosystems within a single hike. If you visit in spring, you will be treated to a vibrant display of wildflowers, including California buttercups and lupines, adding splashes of color to the landscape. The trail offers a unique opportunity to experience the ecological transitions of the preserve, from dense forest to open ridgetop, making it a standout option for exploring the region's natural beauty.
Last updated: April 23, 2026
Tips
Your route passes through protected areas
Please check local regulations for:
Waypoints
Start point
Parking
Get Directions
4.44 km
View of the Valley and the Bay from Windy Hill
Highlight • Viewpoint
4.90 km
Windy Hill Open Space Preserve Scenic View
Highlight • Viewpoint
Tip by
6.69 km
Windy Hill Summit
Highlight • Summit
Tip by
10.3 km
End point
Way Types & Surfaces
Way Types
7.64 km
2.42 km
166 m
< 100 m
Surfaces
5.11 km
4.98 km
160 m
< 100 m
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Elevation
Highest point (570 m)
Lowest point (190 m)
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Weather
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Today
Thursday 7 May
21°C
10°C
0 %
Additional weather tips
Max wind speed: 9.0 km/h
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This route was planned by komoot.
Frequently Asked Questions
How difficult is the Hamms Gulch to Spring Ridge Loop?
This loop is generally rated as moderate to difficult. It involves significant elevation changes, with a climb of approximately 1,440 feet and a similar descent. The terrain varies, with some sections being steep, rocky, or exposed.
Is there a recommended direction to hike the loop?
Many hikers recommend ascending via the Hamms Gulch Trail. This section offers a more gradual, shaded climb with switchbacks. Descending via the Spring Ridge Trail can be steep and exposed, but provides expansive views.
What kind of terrain can I expect on the trail?
The trail offers diverse terrain. The Hamms Gulch section is generally well-graded, shaded, and passes through various forest types, though it can be rocky and rooted. The Spring Ridge Trail is often steep, exposed, wide, and can be rutted with loose gravel, resembling an old fire road. Some sections, like the Betsy Crowder Trail, can be narrow.
What kind of scenery and viewpoints will I encounter?
You'll experience a wide array of scenery, from dense redwood groves and mixed forests to open, grassy ridges. The loop offers panoramic views of the San Francisco Bay, the South Bay area, and the Santa Cruz Mountains. Don't miss the View of the Valley and the Bay from Windy Hill, the Windy Hill Open Space Preserve Scenic View, and the Windy Hill Summit for stunning vistas. You might even spot landmarks like the Stanford Dish and Hoover Tower.
When is the best time of year to hike this loop?
While beautiful year-round, the trail is particularly stunning during spring (March-May) for its abundant wildflowers. Autumn brings lovely colors from maples and oaks, and winter offers cheer from berries on various plants. Be aware that Hamms Gulch Trail can be muddy in wet winter months, and Spring Ridge can be very rutted when dry.
What kind of wildlife and plants might I encounter?
The trail passes through diverse ecosystems, including redwood groves, bay laurel, mixed oak, manzanita, and Douglas fir forests. In spring, expect abundant wildflowers like California buttercups, lupines, and poppies. Wildlife such as deer, rabbits, and various bird species can often be observed, especially in the evenings.
Where can I park for the Hamms Gulch to Spring Ridge Loop?
Parking is typically available at the Hamms Gulch Trailhead, located within Windy Hill Open Space Preserve near Portola Valley, California. Check the preserve's official website for specific parking lot details and any potential fees or restrictions.
Are there any fees or permits required to hike in Windy Hill Open Space Preserve?
Windy Hill Open Space Preserve generally does not require permits or charge entrance fees for day-use hiking. However, it's always a good idea to check the Midpeninsula Regional Open Space District's official website for the most current regulations before your visit.
Is this trail dog-friendly?
Regulations regarding dogs can vary within open space preserves. While some trails may allow dogs on leash, others might have restrictions. Please check the official rules for Windy Hill Open Space Preserve regarding dog access on the Hamms Gulch, Spring Ridge, and connecting trails before bringing your pet.
Does the trail intersect other well-known paths?
Yes, the route also passes through sections of the Bay Area Ridge Trail - 04 - San Francisco and Peninsula, the Spring Ridge Trail, the Hamms Gulch Trail, the Lost Trail, and the Eagle Trail.
Is there water available on the trail?
There are no guaranteed water sources directly on the Hamms Gulch to Spring Ridge Loop. It is highly recommended to carry all the water you will need for the entire hike, especially given the significant elevation changes and exposed sections.