Near Hamms Gulch Trail
Deer feed in the meadows in the evening.
Near Hamms Gulch Trail
The Hamms Gulch Trail re-enters the preserve as it begins climbing away from the creek.
Near Hamms Gulch Trail
Views of Windy Hill come into view as you climb the hill.
Near Hamms Gulch Trail
Views of the bay area and hills through the trees.
Near Hamms Gulch Trail
Even on a rainy day, a hike will put a smile on your face.

Looking for more photos?

View All Photos
Driving Directions
Hike Trail

Hamms Gulch Trail

4.0 (4 Ratings)
A trail with good views of the bay area through the woods from Portola Valley to Skyline Boulevard.
2.7
mi
Distance
1,168
ft
Gain
moderate
Difficulty
Family FriendlyViewsWildflowers
Access Issues
The Windy Hill Open Space Preserve is open 30 minutes before sunrise to 30 minutes after sunset throughout the year.

Route Details

Flatter
Steeper
2.71mi
Distance
1,168ft
Elevation Gain
58ft
Elevation Loss
60%
Max Grade
1,815ft
High Point
655ft
Low Point
Path Type
Point to Point
Description
The Hamms Gulch Trail starts in Portola Valley and climbs to Skyline Boulevard, where you can access the summit of Windy Hill and take in breathtaking views of the Bay Area. While the distance is greater than that of the Spring Ridge Trail, the climb is more enjoyable because it is not as steep and a majority of the trail is shaded by the trees of the surrounding forests. Access to the trail is via the Spring Ridge Trail and Meadow Trails from the parking area in Portola Valley, although you can access it via the Lost Trail from one of the parking lots along Skyline Boulevard. After hiking along the Spring Ridge Trail and part of the Meadow Trail, which goes off the right at a junction, the Hamms Gulch Trail descends along a creek until you leave the preserve temporarily. The trail winds down to a small creek, which can be crossed easily by rock hop, even in the winter or early spring when there may be more water in the creek. The Eagle Trail goes off to the left from here via another creek crossing and provides access to the Razorback Ridge Trail. The Hamms Gulch Trail continues to the right and re-enters the preserve through a small gate as your climb toward Skyline Boulevard. While not as steep of a climb as the Spring Ridge Trail, you'll be ascending for the next 2 miles. The trail follows Hamms Gulch, which sits on the right had side of the trail. Ferns sit along the left hand side of the trail while mosses cover the trees at this point. The right hand side of the trail drops into the gulch. After climbing switchbacks at roughly 1 mile, the trail level outs along a ridge line for roughly .2 miles, proving a slight break to all the climbing. The trail climbs via a set of switchbacks at this point, where views of Windy Hill are off to the right. A bench provides the opportunity to take a break, enjoy the view, and grab a snack. As you climb, the forest takes on the characteristics of an evergreen forest. The air is cooler at the top of the trail, so make sure to have a long sleeve shirt, especially if you are on trail in the morning or later in the afternoon. At roughly 2.5 miles, there is a small side trail that leads to a rock outcrop where views of the Bay Area spread out before you. Continuing on for another .2 miles, the trail meets up with the Lost Trail. From here, you can turn around and return to your car, or follow the Lost Trail to either the Spring Ridge Trail (shortest) or Razorback Ridge Trails if you want to hike more.

Route Conditions

Report Conditions
No Condition Reports
Report Conditions

Nearby Hike Routes

Hamms Gulch-Spring Ridge Trail Loop

Hike Route

Hamms Gulch-Spring Ridge Trail Loop

Views
moderate
7.36 mi
+1,464 ft
Los Trancos Loop

Hike Route

Los Trancos Loop

Historical
moderate
6.86 mi
+1,477 ft
Arastradero Short Loop

Hike Route

Arastradero Short Loop

Birding
moderate
3.38 mi
+432 ft
Arastradero Preserve Loop

Hike Route

Arastradero Preserve Loop

Dogs Allowed
moderate
5.21 mi
+673 ft
Clouds Rest - Meadow Trail Loop

Hike Route

Clouds Rest - Meadow Trail Loop

Birding
easy
2.4 mi
+573 ft
Creek/Pipeline loop at Hidden Villa

Hike Route

Creek/Pipeline loop at Hidden Villa

River/Creek
moderate
1.34 mi
+156 ft
Contributors
David Hitchcock