Telegraph Canyon North Ridge Loop Trail

MODERATE 12 reviews
#1 of 4 trails in

Telegraph Canyon North Ridge Loop Trail is a 12.9 mile moderately trafficked loop trail located near Brea, CA that features beautiful wild flowers and is rated as moderate. The trail offers a number of activity options and is accessible from March until November.

12.9 miles 1793 feet Loop

kid friendly



mountain biking

nature trips

trail running




wild flowers


no dogs

57 freeway exit lambert. Head East Chino Hills State park is on the right.

2 months ago

3 months ago

could not find trail head. no areas for parking. Waste of time.

4 months ago

Empty. Hot. North Ridge Trail is closed, so did an out-and-back via Telegraph Canyon trail to Four Corners. It's all hard-packed or loose sand. Rough on you feet. I rarely get blisters, but have at least three across both feet. Breezes in the canyon are few, and mostly hot. Up at Four Corners, there's a nice picnic shelter with portable toilet. Breezes ate cooler and were constant today (July). Temps were low- to mid-90s. Since the trail is a wide truck/dozer trail, it's even hotter. Heat reflects off the trail, and trees are sparse. Look for the windmill in a tree. There's a water trough for horses hidden in the brush. Scared the .... outta me when it started spinning and a rusty metal monster coming to life.

Great trail for training if you need heat acclimation without too much elevation change. Not a fun family romp. It's work.

Definitely stop in at the Discovery Center before the trailhead. Air-conditioned, educational exhibits, and very friendly folks. They have maps of the trails, and estimated mileages for out-and-back to several points.

Bathrooms are plumbed. Cold water in the sink. Flushing toilets. I felt spoiled compared to other trails.

Will definitely do this trail and others again. Great way to add mileage without fighting crowds and parking.

5 months ago

Good and fun. I enjoy this hike every time I go to top of the world.

horseback riding
8 months ago

cross country skiing
1 year ago

Great en easy to the beginner.

1 year ago

Good trail that overlooks Chino Hills/Ontario area toward Mt. Baldy to the north and on the south overlooks Anaheim Hills and Yorba Linda/91 freeway.

trail running
2 years ago

Great trail for runners, uphill grade is slow and not too challenging. Ran a 10 mile out and back. Definitely enjoyed the views once we hit the top. Best to run in the early morning to beat the heat.

2 years ago

Pleasant hike if you hit the trail first thing in the morning. My boys and I have hiked this trail several times and on our most recent hike we were the first ones on the trail. Observed tracks from several animals, including mule deer, coyotes, snakes, lizards, birds, and rabbits. We also had a coyote trot right past us. It's a fairly easy trail though I wouldn't recommend it on a warm day. Also it's important to keep an eye out for rattlesnakes and cyclists. Overall it's a great hike with some beautiful vegetation and interesting wildlife.

2 years ago

Really nice and maintained trail. Lots of bikers and hikers. Overall not a hike I'd recommend for the summer months. Los of vegetation and animals. I saw a coyote while I was here. There are numerous signs warning about mountain lions so take into account if you will visit here.

mountain biking
3 years ago

Great mellow trail for bikers or hikers. great ride in the cooler months, lots of animals and streams. family fun, but be safe and watch out for wild animals :-)

mountain biking
5 years ago

Fun trail for a beginners.