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California

Los Angeles County

San Gabriel Mountains National Monument

Mount Hillyer – Chilao Campground loop from Stony Ridge Observatory

Routes

Mountain biking trails

United States

California

Los Angeles County

San Gabriel Mountains National Monument

Mount Hillyer – Chilao Campground loop from Stony Ridge Observatory

Moderate

4.7

(8082)

19,668

riders

Mount Hillyer – Chilao Campground loop from Stony Ridge Observatory

02:39

29.7km

670m

Mountain biking

Moderate mountain bike ride. Good fitness required. Suitable for all skill levels. The starting point of the route is right next to a parking lot.

Last updated: May 18, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

Angeles National Forest

Waypoints

Start point

Parking

Get Directions

5.06 km

Devil's Canyon Trailhead

Highlight • Parking

There is a packed dirt parking lot here with restrooms, a picnic table, and shade if you are lucky enough to be one of the first vehicles to arrive. From …

Tip by

14.1 km

Mount Hillyer

Highlight • Summit

After threading your way through a maze of boulders and pine trees (but on a well-marked trail), you reach the summit of Mount Hillyer. Although this is a fun, moderate …

Tip by

14.4 km

Mount Hillyer Trail

Highlight • Trail

Beautiful trail with a steep uphill section at the end. This final piece of the uphill is called the "wall". Despite the short hike-a-bike section it is super fun to ride this trail.

Tip by

24.8 km

Chilao Campground

Highlight • Rest Area

Chilao Campground offers two loops for camping: Little Pine and Manzanita. Little Pine is closer to Highway 2 and close to the scenic Silver Moccasin Trail that leads to Mount …

Tip by

29.7 km

End point

Parking

Way Types & Surfaces

Way Types

10.8 km

9.94 km

4.89 km

3.09 km

971 m

Surfaces

15.6 km

8.05 km

5.98 km

< 100 m

Elevation

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

Highest point (1,880 m)

Lowest point (1,520 m)

Weather

Today

Saturday 27 June

21°C

11°C

0 %

Additional weather tips

Max wind speed: 11.0 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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Mount Hillyer – Chilao Campground loop from Stony Ridge Observatory

Devil's Canyon Trailhead

Mount Hillyer

Mount Hillyer Trail

Chilao Campground

Nearby routes

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