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Spring Ridge, Anniversary, Lost, Razorback Ridge, Eagle and Hamms Gulch Trail Loop route map
Difficulty: DifficultLoop
California

Spring Ridge, Anniversary, Lost, Razorback Ridge, Eagle and Hamms Gulch Trail Loop

Portola Valley, California

9.2 mi

Distance

3,120 ft

Elev. Gain

3h 58m

Est. Time

Loop

Route Type

Difficult

Difficulty

About This Trail

We don't publish a description for Spring Ridge, Anniversary, Lost, Razorback Ridge, Eagle and Hamms Gulch Trail Loop unless we can point you at the agency it came from. We don't have one yet. The planning figures above — distance, elevation gain, estimated time, route type — come from the source listed on this trail.

The managing agency is the authority for conditions, closures and route notes. See official sources below. Spot something we should add?

Trail Conditions

Trail Conditions

Unknown

We have no current condition data for this trail. Check with the operator before you go, and submit a report below if you've been recently.

No recent condition reports. Be the first to share what you see on the trail.

Elevation Profile

Min:196 ft
Max:585 ft
Gain:951 ft
Loss:951 ft
Elevation profileA line rising and falling between 196 ft and 585 ft across 9.2 mi along the route, drawn from start to end.196 ft326 ft455 ft585 ft0.0 mi2.3 mi4.6 mi6.9 mi9.2 mi

Elevation at the labelled points along this route
PointDistance from startElevation
Start0.0 mi198 ft
High point5.7 mi585 ft
End9.2 mi198 ft

Trail Details

Route Type
Loop

Official sources & verification

Verify before you go

Where it is

Nearest town:
Portola Valley, CA · in or next to town
County:
San Mateo County, CA

Nearest town and county from U.S. Census Bureau place records and county boundaries.

We display cached information from agency feeds. Hours, fees, permits, closures, fire restrictions, and conditions change without notice. Outdoors is not the permitting authority. Confirm current conditions for this trail using the links above before you go — you are responsible for compliance. Last verified by us: May 23, 2026. Our copy is more than a month old — please reconfirm with the agency before relying on it.Spot an error in our data?

Reviews

No reviews yet

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Legacy import — verify before navigating

Path geometry came from our pre-launch legacy database. Routes have not yet been re-verified against the operator and may differ from the actual trail.

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Windy Hill Loop

Windy Hill Loop

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Toyon Trail

2.2 mi
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Stay nearby

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Spot an error in our data on Spring Ridge, Anniversary, Lost, Razorback Ridge, Eagle and Hamms Gulch Trail Loop?