Distance (round-trip)

4.3 mi


2 hrs

Elevation Gain

910 ft




Between the cities of Whittier and Hacienda Heights, roughly bordered by the Pomona Freeway, Orange Freeway, and the 605, lies a low, small member of California’s transverse mountain ranges known as the Puente Hills.

The Hills are dotted by a sprawling system of parks and open spaces that provide easily accessible beauty and outdoor recreation for its citizens, and it might surprise you to learn that the primary reason for these parks’ existence is the largest landfill in the United States.

The Puente Hills Landfill began its existence in 1957 as the privately owned San Gabriel Valley Dump. It became a regional sanitation facility in 1970 and, as far as landfills go, this one was pretty forward-thinking. The Puente Hills Landfill began reducing its load by aggressively utilizing recycling and material recovery facilities, is able to generate electricity from the methane in the landfill, and in 1994 they formed an incredibly progressive plan for the nearby land. The landfill would become a public park after it closed in 2013, and it would also help form and sponsor the Puente Hills Habitat Preservation Authority to preserve, maintain, and improve the environment of the Puente Hills.

Today, the Habitat Authority manages 3,680 acres in the Puente Hills, and many of the trails are popular with hikers, trail runners, equestrians, and mountain bikers. Turnbull Canyon, in the northern-central part of the preserve, is an east-west canyon with relatively steep drainages. The canyon has a creek at its bottom that supports a narrow strip of riparian woodland dominated by sycamore trees, while the slopes are covered in coastal sage and native and non-native grasses. The loop route described here is an excellent introduction to the canyon and Puente Hills in general, and will likely surprise Angelenos who are convinced there’s no good hiking between the San Gabriels and Santa Anas.

This trail begins at the Turnbull Canyon trailhead, east of Whittier on the circa-1915 Turnbull Canyon Road. There is a small dirt parking area right outside the trailhead that offers free parking during daylight, but because of the trail’s popularity and proximity to the general sprawl of Los Angeles County this parking area is often full.

Please note that hours of this trailhead have been reduced — this trailhead is currently open from 9AM-6PM from June 1-September 30th and 9AM-5PM the rest of the year. Be sure to check with the Puente Hills Habitat Preservation Authority for further updates. 

Whittier has seen fit to blanket the wide road west of the trailhead with Preferential Parking Districts, despite most of the houses in the neighborhood being single family residences with driveways. If you are unfortunate to not get a spot at the trailhead, the closest areas of non-permit parking begin at the corner of Beverly Boulevard and Painter Avenue, about half of a mile from the start of the hike.


Once you are on the trail, the steep slope of the Hills is to your right, covered in grasses and invasive mustard, while the narrow riparian canyon is immediately to your right. The Authority is currently rehabilitating the riparian area, so you are not allowed to scramble down to the creek bed. You can, however, admire the impressively large sycamore trees from the trail.




In the cooler months (and assuming some decent rainfall), the hills here will be beautifully covered in green and yellow-blooming mustard. The mustard is not native to the area, but most believe it was brought in during the Puente Hills’ long history as an agricultural area. Much of the area here was used for grazing animals (which likely brought in the mustard seed in their droppings) and farming through the early 20th century when oil became the dominant industry in the region. Many of the fire roads in the Preserve are abandoned relics from old oil production.

Today, though, they’re more likely to carry mountain bikers than oil drilling equipment, though.


There are several very steep use-trails heading up along ridge lines. These are not official trails and you should ignore them for the purposes of this trip.

At the 0.7 mile mark, keep left at the three way junction to start on the Sumac Trail. It’s more wide fire road, but now the trail starts a slow climb uphill and turns away from the riparian canyon. Now you’ll be hiking past California sagebrush, black sage, and Alan Chickering sage.


The trail begins a shaper, more steady ascent here as it makes a few quick switchbacks. As the trail ascends, your views of Turnbull Canyon will really open up. In the winter and early spring months, expect to see rolling hillsides covered in verdant green or yellow blooming mustard. You could be forgiven for thinking you’re in some idyllic countryside in Ireland or even central California – but on clear days you’ll be able to follow the canyon’s southwestern alignment and see all the way to Long Beach, Palos Verdes, and even Catalina.



The photos from this day turned out a bit hazier than our actual views were – we could definitely see Catalina from here!


At the 1.4 mile mark, the Sumac Trail intersects with Skyline Drive – a fire road that runs most of the crest of the Puente Hills region. Keep right here and stay to the right again when Skyline Drive intersects with another branch of Skyline Drive and a more faint fire road. When in doubt, just aim for the route with the steepest incline.



From here, your eye will likely be caught by a large, terra-cotta roofed pagoda sitting on one of the hilltops to your west.


This is the Rose Hills Buddhist Columbarium, where Buddhist funerals are performed by monks from the Hsi Lai Temple. Both the Columbarium and the Temple are open to visitors, and provide more peaceful places of rest and meditation amidst the urban sprawl.

Turning your attention back to matters more worldly, climb up the steep fire road toward the prominent water tower on the ridge to your east.

As you ascend, you will be stunned by the absolutely phenomenal views you’ll have in nearly every single direction. From this nondescript ridge, you’ll have tremendous views of the San Gabriels and Santa Monicas behind downtown Los Angeles. This would be an absolutely tremendous place to hike after a rainstorm clears the skies (although note that the trails are usually closed for 48 hours following a rain here).




Climb the last steep section of fire road to reach the water tower for even more sweeping views of the San Gabriels, as well as glimpses at the San Bernardinos, San Jacintos, and Santa Anas down into Orange County.




From the water tower, continue down the steep fire road on the tower’s north side. The rock here is fairly loose and slippery – as it is in most places in Southern California – so take your time on the descent here.

At the 1.87 mile mark, head east on Skyline Drive and continue along this mostly level ridge. You’ll pass through a gated chain link fence and spot the cactus-lined beginning of the Schabarum Trail on your right. Turn onto this trail to begin your descent back into Turnbull Canyon.

If you’re lucky enough to be hiking this in the spring, the cacti soon give way to a lush, green landscape. Be sure to keep your eye out for poppies, lupines, and blue bells on the hillsides, too!



At 2.7 miles, stay to the right as the trail meets an unnamed fire road. At 2.9 miles, you’ll be at the bottom of Turnbull Canyon and back on the Turnbull Canyon Trail. Turn right to follow the trail toward the west on the canyon’s southern bank.

Enjoy the shade of large live oaks and sycamores as you continue hiking along Turnbull Canyon (and keep an eye out for poison oak).


At 3.45 miles you’ll re-meet the junction with the Sumac Trail. Keep left at the junction to return back to the trailhead.

Founder and Editor-in-Chief of Modern Hiker, Author of "Day Hiking Los Angeles" and "Discovering Griffith Park." Walking Meditator, Native Plant Enthusiast.



Multi-Use Trail

Views / Vista

Trail Map


LUIS FERNANDO ESPARZA Feb 29, 2020 19:02

Turn bull canyon suck nows. It's been 5 years I havent gone to that trail on the Whittier side. We finally get and there no parking anymore they fenced the parking area and now there signs for permit parking only.

Leave a Reply to LUIS FERNANDO ESPARZA Cancel reply

Your email address will not be published. Required fields are marked *

Oscar Jan 20, 2020 21:01In reply to: aaron

7th street entrance in Hacienda Heights. Thank me later.

Leave a Reply to Oscar Cancel reply

Your email address will not be published. Required fields are marked *

aaron Jun 17, 2019 19:06In reply to: jenny

i really enjoy this hike, i have been doing it for over 10 years. I'm sorry to hear about Jenny's complaints, yes there is dog feces every time i hike. Not much, but nonetheless i do see it. Also see feces from the wildlife that reside in this habitat too. Not much litter at all here. I used to park in the small provided parking lot but that since has been closed down and barricaded with chains, and rightfully so. At least once every 2 weeks i'd see shattered glass on the floor of the parking lot. Probably during a time when there's less traffic on trail. Usually during high noon when its nice and hot. I know park down in the residential area where parking is allowed and there always seems to be plenty of parking there. As for those without driveways, they have alleys in the back of their homes that lead to their garages that lead directly to their homes, there would be absolutely NO need to park blocks away if you live in the area. I do understand the complaint of the people who reside here but it is public right-away, we are all tax payers and we all pay a lot!! If anyone needs to know the best legal places to park feel free to message me!! Reducing the hours of usage for the habitat was a nice way to somewhat please the residents. Years ago you can hike at sunrise till sundown. So i imagine the parking situation is a lot better for the locals since the habitat is now only open 8-9 hours a day depending on the seasons. Before it was open over 12 hours a day!!!

Leave a Reply to aaron Cancel reply

Your email address will not be published. Required fields are marked *

Alejandro May 30, 2019 09:05

Ok, so as stated before the little dirt patch is unavailable for parking and they’ve actually closed it off for good. They put up a wooden fence and chains to block people from parking there.
I went there yesterday and the best (and legal way to park without getting a ticket or getting towed) is if you park on Alta Ave & Camilla St. (pretty much in across of Lou Henry Hoover Elementary School). If you pass Broadway when you’re driving down Alta Ave, you’ve gone too far and you will get a ticket/get towed if you don’t have a permit. So as long as you stay below Broadway, you’re fine.
Parking across the elementary school is perfect cause it’s open to the public and it’s outside of the permit district. Just be careful with the street sweeper which there’s a sign for when it passes.
You park across the school and make your way to the entrance of the hiking trail.
Hope this info was helpful!

Leave a Reply to Alejandro Cancel reply

Your email address will not be published. Required fields are marked *

DS May 14, 2017 17:05

The closest non-permit parking I found was at Painter & Camilla Avenues. You now need a permit to park at Painter Ave & Beverly Blvd.

Leave a Reply to DS Cancel reply

Your email address will not be published. Required fields are marked *

Lizette Apr 10, 2015 12:04

Hi Casey. I am the Ecologist for the Puente Hills Preserve and am glad to see you're enjoying our Preserve and respectfully staying on our designated trails. As part of our mission to preserve plants and wildlife in the Preserve it is important that we encourage recreationists to stay on officially designated and maintained trails. We are working very hard to close the unofficial trails and restore the habitat and would appreciate your help by not encouraging others to use them with your statement above: "There are many unofficial use-trails and mountain biking routes that are also carved into the hillside. You may want to try your hand at them for an extra challenge, but they are not maintained and are definitely more strenuous than the route described here." Thanks for letting people know about our hours as Preserve hours and trail etiquette are two important visitor education programs for us! If you have any questions, please feel free to contact me at [email protected] or visit our website at www.habitatauthority.org.

Leave a Reply to Lizette Cancel reply

Your email address will not be published. Required fields are marked *

Brian Mar 10, 2015 20:03In reply to:

Agree! The Hacienda Heights trailhead is much nicer with plenty of parking space adjacent a school away from people's homes. A much nicer neighborhood than on the south side of the hill. To reach the trailhead exit 7th ave from the 60 and head south a couple blocks and it ends right at the trailhead, could never miss it. You can make a great 5 mile loop here, I like heading up coyote trail (very green and shaded trail, no fire roads here!) to meet at skyline, taking that west to native oak then it heads back down into a canyon which you climb back to meet at ahwingna trail to head back to trailhead. Hiking these trails is alot less crowded than the Whittier side going to that ugly water tower. If your like me and hate hiking on crowded fire roads this feels more isolated and you can actually find a bit of solitude on weekdays. Must do on clear days! You could see San jacinto if clear enough awesome views

Leave a Reply to Brian Cancel reply

Your email address will not be published. Required fields are marked *

jenny Mar 2, 2015 20:03

To add to the comments I made earlier today, 2 hour parking for bikers and hikers on the weekend definitely would not work for me or any of my neighbors. That is when we want to enjoy our neighborhood and to be able to access our homes after running errands etc. We once had to truck Home Depot supplies for two block because we could not park our vehicle in front of our own home. Not fun I can assure you. I am well aware of the beauty of the Turnbull trails, however seeing dirty diapers, massive amounts of dog feces and trash is just disappointing and a disgusting lack of respect for our beautiful hills and trails. Two hour parking for these people is not a solution! We are in constant communication with the Whittier Parking and Transportation department and they have no intention of removing or changing the permit parking situation. Remember that the neighborhood is just that, a neighborhood. It is residential and not recreational. Perhaps the people you should be talking to are the Habitat Authority who have allowed this situation to get out of hand and advertised the trails without providing any parking whatsoever.

Leave a Reply to jenny Cancel reply

Your email address will not be published. Required fields are marked *

Casey Schreiner Mar 2, 2015 10:03In reply to: jenny

Thanks for sharing your viewpoint, Jenny.

It sounds very similar to some problems homeowners in the Hollywood Hills are having with trailheads to Hollywood Sign viewpoints - and in other popular hiking areas close to peoples' homes. I hope that outdoor enthusiasts and homeowners can come to a mutually beneficial compromise instead of digging their heels in on both sides. While I'm sympathetic to the people who live near the trailhead, I don't think making access to an obviously much-loved green space in a region notoriously poor in green spaces is the best course of action.

Near the southern entrance to Runyon Canyon, for instance, very similar problems were happening - litter, noise, people not picking up after their dogs, etc. Parking rules were changed, but they basically allowed people to park for a short time (I think 2 hours) during the weekends, not at all during the evening, and (I believe) made it very difficult to park during the week. This ended up reducing a lot of the residential complaints while still letting hikers access the trail during the daytime hours on the weekend -- and the parking rules are STRICTLY enforced, too.

I hope the City of Whittier can use something like that as a model so both groups can get what they want and neither side feels like it's being antagonized.

Leave a Reply to Casey Schreiner Cancel reply

Your email address will not be published. Required fields are marked *

jenny Mar 2, 2015 06:03

I would like to comment on your observations regarding parking near Turnbull Canyon. I live close to the trailhead and have resided in this neighborhood for 32 years. Most residents DO NOT have driveways and even if they did why should we be subjected to our neighborhood being overtaken by trash tossing, loud, rude bikers and hikers every single morning of every week. Fortunately we are a united neighborhood and came together to resolve this issue and now have our neighborhood partially restored to peace and serenity by having permit parking only streets. We are hoping that the Habitat Authority will close this trailhead to protect the wildlife corridor and stop the damage that is being done by rude, ignorant people who have absolutely no respect for this wonderful and natural resource. Rest assured that the permit parking will continue to grow as more and more streets request it from the City of Whittier, who are, by the way, extremely sympathetic to this ever growing problem.

Leave a Reply to jenny Cancel reply

Your email address will not be published. Required fields are marked *

Leave a comment

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

Should You Hike Here?

With recent wildfire damage and ongoing waves of COVID-19 infections and restrictions, National Forest, National Park, and other public land closures, restrictions, or social distancing guidelines may be in-effect.

If infection rates are on the rise, please do your best to remain local for your hikes. If you do travel, please be mindful of small gateway communities and avoid as much interaction as you can. Also remember to be extra prepared with supplies so you don't have to stop somewhere outside your local community for gas, food, or anything else.

Please be sure to contact the local land management agency BEFORE you head out, as these conditions are likely to change without enough notice for us to fully stay on top of them. Thanks, and stay safe!

Click here to read the current CDC guidelines for traveling during the COVID-19 pandemic.