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Mountain biking trails

Borel Hill – Ancient Oaks Trail loop from Portola Valley

Routes

Mountain biking trails

Borel Hill – Ancient Oaks Trail loop from Portola Valley

Hard

3.0

(24)

riders

Borel Hill – Ancient Oaks Trail loop from Portola Valley

03:03

27.0km

750m

Mountain biking

Hard mountain bike ride. Good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike. The starting point of the route is right next to a parking lot.

Last updated: April 22, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

Windy Hill Open Space Preserve

Coal Creek Open Space Preserve

Skyline Ridge Open Space Preserve

Russian Ridge Open Space Preserve

Audubon Society

Waypoints

Start point

Parking

Get Directions

11.1 km

Ridge Trail

Highlight (Segment) • Trail

Ridge Trail gives you pretty views to the bay and the Santa Clara Valley (through high grass, depending on the season).

Tip by

12.6 km

Borel Hill

Highlight • Summit

Borel Hill is the highest point in the preserve at 2,575 feet (784 meters), with panoramic views of the Pacific Ocean to the west and across the San Francisco Bay …

Tip by

12.6 km

Borel Hill

Highlight • Summit

Spectacular 360° surround views from the top of the hill (2513 feet / 766 meters).

Tip by

12.7 km

Ancient Oaks Trail

Highlight (Segment) • Trail

The Ancient Oaks Trail is a 1.7-mile loop that can be extended to approximately 3.5 miles by combining it with the Ridge or Charquin trails. It leads hikers through canyons, …

Tip by

16.1 km

View of the Pacific Ocean from Russian Ridge

Highlight • Viewpoint

From up here on the ridge you get great sweeping views across the foothills. On a clear day you can see out west to the Pacific Ocean.

Tip by

16.5 km

Mindego Hill Windmill

Highlight • Viewpoint

This spot has a lovely wooden platform with a bench where you can take a break and enjoy the panoramic views of the Silicon Valley side of Mindego Hill, which …

Tip by

27.0 km

End point

Parking

Way Types & Surfaces

Way Types

11.2 km

5.34 km

5.16 km

4.31 km

944 m

< 100 m

Surfaces

10.8 km

8.78 km

4.31 km

1.54 km

1.42 km

< 100 m

Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

Weather

Friday 22 May

24°C

10°C

0 %

Additional weather tips

Max wind speed: 8.0 km/h

to get more detailed weather forecasts along your route

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

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Borel Hill – Ancient Oaks Trail loop from Portola Valley

Ridge Trail

Borel Hill

Borel Hill

Ancient Oaks Trail

View of the Pacific Ocean from Russian Ridge

Mindego Hill Windmill

Nearby routes

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