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Spring Ridge, Lost Trail, Eagle Trail Loop route map
Difficulty: DifficultLoop

Spring Ridge, Lost Trail, Eagle Trail Loop

Portola Valley, California

9.5 mi

Distance

2,746 ft

Elev. Gain

4h 14m

Est. Time

Loop

Route Type

Difficult

Difficulty

About This Trail

We don't publish a description for Spring Ridge, Lost Trail, Eagle 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:165 ft
Max:584 ft
Gain:837 ft
Loss:837 ft
Elevation profileA line rising and falling between 165 ft and 584 ft across 9.5 mi along the route, drawn from start to end.165 ft305 ft444 ft584 ft0.0 mi2.4 mi4.8 mi7.1 mi9.5 mi

Elevation at the labelled points along this route
PointDistance from startElevation
Start0.0 mi165 ft
High point5.5 mi584 ft
End9.5 mi165 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

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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.

Spot an error in our data on Spring Ridge, Lost Trail, Eagle Trail Loop?