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Los Robles Trail West (Space Mountain)



5.6 mile 9.1 kilometer point to point


Ascent: 1,146' 349 m
Descent: -1,008' -307 m
High: 1,533' 467 m
Low: 856' 261 m


Avg Grade: 7% (4°)
Max Grade: 26% (15°)


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Trail shared by Michael Sebastian

A major trail offering fun riding while connecting several different open space areas together.

Michael Sebastian

Electric Mountain Bikes Allowed

Features -none-


Los Robles is a very long trail connecting Rancho Sierra Vista/ Satwiwa National Park in Newbury Park to Foothill Drive in Westlake Village. The eastern half is almost entirely fire road. The western end is entirely singletrack. This description focuses on the western portion.

Los Robles trail west starts from the intersection of Los Robles Trail East and Spring Canyon Trail. The first part of Los Robles Trail West (Space Mountain) heads up a hill popularly known as Space Mountain. Space mountain consists of multiple tight switchbacks not unlike the ride at Disneyland and is widely known in the local mountain biking community. Space Mountain's twists and turns and can be ridden in both directions, but are much more fun going downhill.

Once you get to the top of space mountain the trail straightens out and runs along the northwest side of the mountain, offering great views over Thousand Oaks and Newbury Park.

Then there is a short and treacherous decent to cross a private dirt road. Los Robles trail continues on the other side of the dirt road with a gradual climb. This climb has several rocky obstacles that only the most proficient will be able to ride over.

From the intersection with Rosewood Trail there is a short detour over to a peak with a picnic table. The view at the top is great; most days you can see all the way to the Ocean!

Continuing on Los Robles Trail, it eventually stops following the contours of the hillsides and instead follows some property lines where there is private property on both sides of the trail. This section does not flow at all, and instead has several steep, rocky, rutted, loose climbs and descents. These are challenging to ride down and most riders will have to hike-a-bike on the uphills.

Once past the private property the flow is excellent all the way past the Felton Connector Trail until Potrero Canyon Road. Across the road from the parking lot, the trail continues into Rancho Sierra Vista/Satwiwa National Park.


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Feb 17, 2020
Ryan Parks
Apr 7, 2019
Michael Alfaro
Nov 1, 2018
Conscious Geek
Aug 9, 2018
Keith Herren
Apr 18, 2018
Eddie Croke
Best is after it rains but pretty rocky when dry
Nov 25, 2017
Brayden Carr
Really fun trail if you go down to Felton street or go up and down space mountain 3.1mi
Jul 30, 2017
Evan S.

Trail Ratings

  3.9 from 15 votes


  3.9 from 15 votes
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in California


247 Views Last Month
8,420 Since Oct 25, 2014



Top out on Space Mountain at sunset.
Apr 3, 2018 near Casa Co…, CA
Space Mountain downhill, June 2019.
Jul 19, 2019 near Thousan…, CA
Dropping down at Space Mountain
Dec 29, 2018 near Casa Co…, CA
Space Mountain
Dec 29, 2018 near Casa Co…, CA
One of the jumps at the bottom of Space Mountain
Dec 29, 2018 near Casa Co…, CA
Bench Overlook at the top of Robles.
Nov 29, 2013 near Casa Co…, CA

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