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Portola Valley – Altamont Road Vineyard loop from Hillsdale

Portola Valley – Altamont Road Vineyard loop from Hillsdale

Hard

4.6

(1591)

11,047

riders

Portola Valley – Altamont Road Vineyard loop from Hillsdale

04:16

86.5km

1,200m

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: August 13, 2026

Tips

Includes segments that go up or down a series of steps

You may need to carry your bike.

After 71 m for 14 m

After 86.5 km for 14 m

Waypoints

Start point

Train Station

Get Directions

8.46 km

View of Crystal Springs Reservoir from Cañada Road

Highlight (Segment) • Viewpoint

Bike Sunday - no motorized vehicles on Sundays, we've got the whole road for ourselves.

Tip by

24.6 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. …

Tip by

39.1 km

Byrne Preserve Lookout

Highlight • Viewpoint

A large open area of scrub, brush and hilly field. There is a parking lot here and access to several walking trails.

Tip by

41.2 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 …

Tip by

45.9 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 …

Tip by

74.9 km

Pulgas Water Temple

Highlight • Monument

San Francisco built Pulgas Water Temple as a monument to the engineering marvel that brought Hetch Hetchy water more than 160 miles across California from Yosemite National Park in the …

Tip by

86.5 km

End point

Train Station

Way Types & Surfaces

Way Types

45.2 km

25.7 km

15.2 km

273 m

160 m

< 100 m

Surfaces

81.1 km

5.03 km

346 m

< 100 m

Elevation

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

Highest point (230 m)

Lowest point (0 m)

Weather

Today

Tuesday 1 September

21°C

16°C

18 %

Additional weather tips

Max wind speed: 34.0 km/h

to get more detailed weather forecasts along your route

Comments

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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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Portola Valley – Altamont Road Vineyard loop from Hillsdale

View of Crystal Springs Reservoir from Cañada Road

Portola Valley

Byrne Preserve Lookout

Altamont Road Vineyard

Adobe Creek

Pulgas Water Temple

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