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Routes
Running trails & routes
United States
California
Orange County
Brea

South Ridge and Telegraph Canyon Loop

Moderate

2.6

(28)

29

runners

South Ridge and Telegraph Canyon Loop

01:31

11.9km

210m

Running

Jog the moderate 7.4-mile South Ridge and Telegraph Canyon Loop in Chino Hills State Park, featuring open vistas and shaded canyons.

Last updated: February 26, 2026

Waypoints

A

Start point

Parking

Get Directions

1

149 m

Carbon Canyon Regional Park

Highlight • Rest Area

Carbon Canyon Regional Park is a great local park with a small lake and some nature trails featuring Redwoods and the Carbon Canyon Creek.

It connects to the Chino Hills …

Tip by

2

5.25 km

View of Yorba Linda

Highlight • Viewpoint

This area of trail has a nice view of the residential area of Yorba Linda.

Tip by

3

7.70 km

Telegraph Canyon Road

Highlight • Trail

Following the Telegraph Canyon Road is great for trail running. The old backcountry road starts near the Discovery Center in the western portion of Chino Hills State Park and leads …

Tip by

B

11.9 km

End point

Parking

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Way Types & Surfaces

Way Types

11.9 km

< 100 m

Surfaces

11.2 km

522 m

141 m

< 100 m

< 100 m

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Elevation

Elevation

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

Highest point (320 m)

Lowest point (140 m)

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Weather

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Today

Friday 29 May

22°C

13°C

21 %

Additional weather tips

Max wind speed: 17.0 km/h

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This route was planned by komoot.

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Frequently Asked Questions

What is the terrain like on the South Ridge and Telegraph Canyon Loop?

The trail features varied terrain. You'll primarily find doubletrack and dirt roads, though some connecting sections, like Bovinian Delight, include singletrack. The South Ridge portion has rolling hills and can be quite challenging with steep climbs (up to 12-18% grade in places). In contrast, the Telegraph Canyon Trail is generally more gradual and flatter. Be aware that the trail can become muddy and sticky after rain.

What kind of scenery can I expect along the route?

The loop offers a mix of open vistas and shaded natural beauty. The South Ridge Trail provides expansive views of Chino Hills State Park and the surrounding Yorba Linda and Orange County areas. The Telegraph Canyon Trail, considered very scenic, meanders through riparian habitats with willow and sycamore trees, wild rose, and mule fat, offering more shade. The park's landscape also includes grasslands and sagebrush, with beautiful wildflowers in springtime.

Is the South Ridge and Telegraph Canyon Loop suitable for beginners?

While some parts are gradual, the overall loop is considered moderate due to its 10.6-mile length and approximately 1,264 feet of elevation gain. The South Ridge section, with its continuous rolling hills and steep grades, can be quite challenging. The Telegraph Canyon portion is less demanding. It's a good workout, especially if you tackle the climbs on South Ridge, so beginners should be prepared for a significant effort.

What are the notable landmarks or points of interest along the way?

You'll pass by several interesting spots. The trail goes through Carbon Canyon Regional Park. You'll also encounter a View of Yorba Linda from the South Ridge. The Telegraph Canyon Road section is particularly scenic with its riparian habitats. "Four Corners" is a popular resting spot where several trails converge, offering shade.

What is the best time of year to jog this route?

Spring and winter are the most ideal times to visit. Many parts of the trail, especially the South Ridge, are exposed to the sun, so avoiding intense summer heat is recommended. Spring also brings beautiful blossoming sage and wildflowers.

Does the trail intersect other well-known paths?

Yes, the route incorporates sections of several other trails. You'll jog along parts of the Telegraph Canyon Trail, South Ridge Trail, Diemer Trail, Utility Spur, Easy Street Trail, Carbon Canyon Creek Nature Trail, and Fairmont Staging Trail.

Are there any permits or entrance fees for Chino Hills State Park?

Yes, Chino Hills State Park, where this loop is located, typically requires an entrance fee. For the most current information on fees and any necessary permits, it's best to check the official California State Parks website at ca.gov.

Is the South Ridge and Telegraph Canyon Loop dog-friendly?

Information regarding specific dog policies for this trail within Chino Hills State Park is not provided in the available data. It is always recommended to check the official Chino Hills State Park website or contact park authorities directly for their current pet regulations, including leash requirements.

Where can I park to access the South Ridge and Telegraph Canyon Loop?

The trail is located within Chino Hills State Park near Yorba Linda. While specific parking areas for this exact loop aren't detailed, you would typically access it via the park's main entrances. "Four Corners" is mentioned as a popular resting spot where several trails converge, which might be near an access point. It's advisable to check the Chino Hills State Park website for designated parking facilities and trailhead access points.

What should I know about trail conditions after rain?

It's important to note that the park closes following significant rainfall until trail surfaces are no longer saturated. If you plan to jog after wet weather, be aware that the trail can become muddy and sticky, and you should confirm the park's open status before heading out.

What kind of wildlife might I encounter on the trail?

The loop is part of the larger Puente-Chino Hills Wildlife Corridor, indicating its ecological importance. While specific wildlife sightings aren't detailed, you can expect to be in a natural habitat. The Telegraph Canyon Trail features riparian habitats with diverse flora like willow and sycamore trees, wild rose, and mule fat, which support various local species.

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