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Tree Tunnel on Portola Road – Portola Valley loop from Mountain View

Tree Tunnel on Portola Road – Portola Valley loop from Mountain View

Hard

4.7

(3616)

7,796

riders

Tree Tunnel on Portola Road – Portola Valley loop from Mountain View

03:08

62.2km

990m

Road cycling

Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride. The starting point of the route is accessible with public transport.

Last updated: May 1, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

Foothills Nature Preserve

Foothills Open Space Preserve

Los Trancos Open Space Preserve

Monte Bello Open Space Preserve

Coal Creek Open Space Preserve

Waypoints

Start point

Train Station

Get Directions

7.30 km

Adobe Creek

Highlight • River

Adobe Creek flows from the Santa Cruz mountains to the Palo Alto Flood Basin. It used to be a perennial stream with lots of fish but has been canalised and managed so that it's now constant and doesn't have any fish.

Tip by

7.93 km

Altamont Road Vineyard

Highlight (Segment) • Structure

Winding through a quiet residential area with minimal traffic, Altamont Road is perfect for a laid-back ride or linking up with tougher routes nearby. The gentle climbs make it super relaxing, and the hill views are awesome—especially around sunrise or sunset. It’s bike-friendly, but watch out for the occasional car on the narrower sections.

Tip by

15.5 km

Page Mill Road Scenic Viewpoint

Highlight (Segment) • Viewpoint

Page Mill Road is a classic route for cyclists looking for a challenge, with its steep climbs, sharp switchbacks, and stunning views of Silicon Valley. Starting near Palo Alto and climbing into the Santa Cruz Mountains, the ride tests your legs but rewards you with breathtaking scenery.
Be prepared for varying gradients, especially in the lower sections, and pack plenty of water—the climb can be intense, especially on warmer days.

Tip by

23.7 km

Skyline Boulevard Viewpoint

Highlight • Viewpoint

A nice place to pause and catch the view before zipping down the hill on either side. There's a wooden fence where you can lean your bike for a moment.

Tip by

39.3 km

Tree Tunnel on Portola Road

Highlight (Segment) • Natural

I road though here after coming down La Honda road, thought it was a really pretty part of the road and it covered l connects back to Sand Hill road

Tip by

41.1 km

Portola Valley

Highlight (Segment) • Settlement

The ride takes you through the (very) well-to-do town of Portola Valley, which usually ranks as one of the top 10 in the US in terms of average household income. You may have heard that Portola Valley has a higher population of horses than of people. While that seems to have been true only in much earlier years, this is still a town with a very high rate of horse ownership and, just like in the neighboring Woodside, you shouldn't be surprised if you encounter residents heading to the corner store on horseback.

Tip by

62.2 km

End point

Train Station

Way Types & Surfaces

Way Types

38.0 km

18.8 km

5.23 km

158 m

< 100 m

Surfaces

61.2 km

892 m

133 m

< 100 m

Elevation

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

Weather

Today

Saturday 18 July

25°C

14°C

0 %

Additional weather tips

Max wind speed: 12.0 km/h

to get more detailed weather forecasts along your route

Comments

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Tree Tunnel on Portola Road – Portola Valley loop from Mountain View

Adobe Creek

Altamont Road Vineyard

Page Mill Road Scenic Viewpoint

Skyline Boulevard Viewpoint

Tree Tunnel on Portola Road

Portola Valley

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