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Routes
Running Trails
United States
California
San Mateo County

Thornewood Open Space Preserve (Closed Area)

Routes
Running Trails
United States
California
San Mateo County

Thornewood Open Space Preserve (Closed Area)

The best running trails in Thornewood Open Space Preserve (Closed Area)

4.9

(13)

1,331

runners

51

runs

Running in Thornewood Open Space Preserve (Closed Area) is one of the best ways to explore more of this region. To help you discover the most beautiful places to run, we’ve reviewed our full collection of routes in Thornewood Open Space Preserve (Closed Area)—and are proud to present the best running trails. Click on any of the routes for more details and browse real tips and photos uploaded by other runners.

Last updated: December 4, 2025

35

runners

1. Bear Gulch Trail (Meadow) loop from Woodside

16.0km

02:13

570m

570m

Hard run. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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Hard

6

runners

2. Running loop from Woodside

5.10km

00:43

200m

190m

Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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Moderate
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7

runners

3. Borel Hill loop from Portola Valley

28.5km

03:44

770m

770m

Hard run. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.

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Hard

26

runners

4. Running loop from Portola Valley

8.23km

01:03

170m

170m

Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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Moderate

3

runners

5. Running loop from Portola Valley

5.51km

00:40

100m

100m

Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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Moderate
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Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.

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Browse the best Running Trails & Routes in other regions.

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