Help keep our trails and parks open during COVID-19 by committing to social distancing. Some trails or park services may be closed this weekend so check with local authorities before heading out.
Learn more

Coal Canyon Trail is a 9.8 mile heavily trafficked out and back trail located near Corona, California that features a waterfall and is rated as moderate. The trail is primarily used for hiking, running, nature trips, and mountain biking and is accessible year-round.

Length 9.8 mi Elevation gain 1,863 ft Route type Out & Back

Kid friendly

Hiking

Mountain biking

Nature trips

Running

Partially paved

River

Views

Waterfall

Wild flowers

Wildlife

Bugs

Muddy

Over grown

Rocky

Scramble

Washed out

No shade

No dogs

Description
Waypoints (0)
Facilities
Getting There

Picnic Rock is also locally known as "Mini Moab". Park at the Green River Road parking lot. Take the Santa Ana River Trail about 1 mile west where the old Coal Canyon Road goes south under the SR 91 freeway. This takes you to the Chino Hills State Park's Coal Canyon gate. Continue past the gate staying on the short paved driveway for about 300 feet, and when the driveway ends cross the dry wash to the right (west) which takes you to the official Coal Canyon Trail trailhead marker (a wood post). Continue on Coal Canyon Trail for about 3.4 miles to Leonard Road.

Dirt lot parking by the Green River Golf course.

Coal Canyon is officially located in Chino Hills State Park; however if accessed from Green River Golf Course area in Corona then the trail will be found from following the bike trail path after a mile or so. On the left is the underpass which leads to two main pathways.

Weather
UV Index
Daylight
Reviews (148)
Photos (126)
Recordings (139)
Completed (290)
Rob McCray
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarThu Jul 09 2020
Hiking

Great trail for a gravel bike ride. Lots of up and trail was pretty good, until further up where here were deep ruts, but that’s ok and to be expected. Super fun day!

pastor pattison
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray StarGray StarMon Jun 29 2020
Hiking

Definitely not easy! Not super hard either, more of a moderate hike!

Comment from AllTrails

- 3 days ago

Hello Pastor, thank you for your suggestion, I have updated the trail page accordingly!

View pastor's Recording
Anthony Galustyan
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarFri May 29 2020
HikingOver grown
View Anthony's Recording
Megan Greenan
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray StarGray StarSun May 24 2020
HikingNo shade

No waterfall. No shade.

View Megan's Recording
Lynette L.
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray StarGray StarMon May 18 2020
HikingNo shade

Great trail with gorgeous views. We struggled with finding the trail head from where the parking was but eventually found it. Park along riverbanks bed and walk along river bed eventually taking a left under the fwy (not the first left which leads to nowhere). Steady uphill trail with no shade so start early.

Bobbi Nickels
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarSat Mar 28 2020
HikingNo shade

I go hiking often and I wouldn’t consider this easy. There’s an incline the entire way up. Doable just don’t expect it to be easy. 100% recommend! Gorgeous views the whole way up. When you make it to the top, it’s sooooo worth it!! Oh yeah, didn’t see a waterfall anywhere.

Chris lipsey
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray StarGray StarGray StarGray StarTue Feb 18 2020
Hiking

this is an okay trail, I went with an old topo map to find the three mine adits in the canyon, on the map there where two trail that virus down the mountain at the eco reserve gate. those old trails no longer exist, and the land has reclaimed them. I also hiked the dry creek bed, there are some cool abandon things down there. bring water, it's hot, and exposed! HOW TO GET THERE: exit Green River road off the CA91. head to the golfcoarse, follow the river along the freeway to a parking lot with a bike path trail head. walk .5 miles down the bike trail, there will be a dirt intersection, turn left under the freeway. the trail splits. left is pipeline trail right is coal canyon trail center is a dry creek bed.

Brian Henderson
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray StarGray StarSat Aug 10 2019
HikingNo shade

I like this trail better than Pipeline. 10.26 miles and 2,000 ft elevation gain. It’s a fire road with no shade. Dirt is compacted and not too many rocks. The top is awesome. Picnic Rock is beautiful. 365 degree views of OC, Anaheim Hills, Corona, and Yorba Linda. You can climb on picnic rock and several other rocks. Great trail for hiking, biking, running, and dogs. I would charge this trail again.

Rak Din
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray StarGray StarFri May 24 2019
HikingWashed out

If you’ve never been here, compare this trail’s current route with other nearby trails to where you actually want to go, because sometimes the default “suggested” route changes between them. (Last changed around July 2019.) When you reach the Coal Canyon gate for Chino Hills State Park (facing south after crossing under SR 91 from the Santa Ana River trail) there will be 3 trail options - left (Pipeline Trail), right (Coal Canyon Trail), and middle (Big Mo Trail). You'll see a short paved road going straight (south, and seems to go straight into the dry wash) and a dirt road left of the paved road that also almost goes straight (south). For the Coal Canyon Trail, take the paved road for a few hundred feet then turn right to cross the wash and at the other side is where you'll find the Coal Canyon Trail marker. For the Big Mo Trail and seasonal waterfall you want to head straight into the canyon, so take that dirt road left of the paved road. After a few hundred feet, Pipeline Trail branches left (east) but keep going straight for Big Mo Trail where you will soon find its first trail marker. Much of Big Mo Trail is currently washed out and some trail markers are missing, but essentially you want to stay on the left bank of the wash (east side) and head straight into the canyon. After about another 500 feet, another wash from the east meets the main wash. You'll need to cross it, but the banks at the meet are quite high but if you go 200 feet left the banks are much shorter and easier to cross. Soon it will seem like the trail disappeared, but keep following the wash or stream to the end of the canyon (you hit an impassible 100 foot wall) where it turns right and right again to the waterfall. The waterfall is only after substantial rains. By the way, the current official Chino Hills State Park trail map shows the three trails (Coal Canyon Trail, Big Mo Trail, and Pipeline Trail) but Big Mo Trail’s name is missing. The park said they will review for the next map update.

Kelly Soutar
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray StarGray StarGray StarGray StarSun May 12 2019
Hiking

well the trail is over grown and washed out. we ended up going the wrong way and couldn't get on the actual trail. i advise staying rt in that riverbed and going straight up. no evidence of water so doutful youll see a waterfall at all.

View Kelly's Recording
Donna Lins
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray StarGray StarGray StarGray StarSun Apr 21 2019
Hiking

My husband and I were there yesterday. We did not see any marker for the Big Mo trail, so we ended up going to the right and up the Coal Canyon trail--which had way more incline than we wanted. Was the Big Mo trail maybe washed out after our last rains???

Rak Din
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray StarGray StarMon Mar 25 2019
HikingNo shadeRocky

The last mile is best. You spend most of the time in or next to the stream bed (you may get your feet a little wet), but in this rainy season you are rewarded with a waterfall at the very end. If parking on-street west of Green River at the bike trail, remember to not leave valuables in your vehicle. Fresh broken window glass was there.

Jose Delgado
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray StarGray StarGray StarGray StarSat Mar 16 2019
Hiking

After the bike trail, you'll make a left. Go straight up the middle and you'll eventually find the trail. Once you find the stream, follow the stream all the way to the end. Pay attention on your way back. if you follow the stream back, you'll end up off the trail. There's a little stream waterfall at the end. Right before it there's some shade. Quite relaxing for a little break.

View Jose's Recording
Sheryl Bossard
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray StarGray StarSun Mar 10 2019
HikingMuddyNo shadeOver grownRockyWashed out

there's a little waterfall at the end of this trail. probably a rare sight that only happens after the rains we've been getting. very rocky trail, stream from waterfall is going right through the middle of the trail. bring waterproof shoes.

View Sheryl's Recording
T Pak
Yellow StarYellow StarYellow StarYellow StarGray StarGray StarGray StarGray StarGray StarGray StarSun Jan 27 2019
Hiking

River bed. Rocky. Tiny waterfall at end

View T's Recording
Diana Home
Yellow StarYellow StarYellow StarYellow StarGray StarGray StarGray StarGray StarGray StarGray StarSun Nov 12 2017
Hiking

The recent fires destroyed most of what must have been a beautiful place, but there is life coming back to the area.

M Liu
Yellow StarYellow StarYellow StarYellow StarGray StarGray StarGray StarGray StarGray StarGray StarSat Oct 14 2017
Walking

This trail has been ravaged by recent wildfires it seems no longer exists

Joanna Villarreal
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarSun Sep 17 2017
Hiking

I did this hike yesterday. I enjoyed it. A good amount of incline actually, so I would rate it more on the moderate side. I went on a afternoon hike, so the sunset looked pretty great. I suggest people park at the entrance of the golf course on green river rd. You will see parking spaces and a bike path will be very visible when you park. You have to walk the bike path to get to the trail. It's about a 15 to 20 minute walk on the bike path. You will come to a point where there's a mining/drilling type of tractor and u will see the freeway bridge to your left. Walk under it and you will finally see the sign saying coal canyon trail. Enjoy!

Joseph Mieliwocki
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarMon Apr 24 2017

definitely multiple ways to get up, used Google maps along with this app to guide my way to the radio towers and explore the abandoned star ranch saloon.

Crystal Jones
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarThu Mar 23 2017
Hiking

I had to visit this trail twice just to find the right one that went to the waterfall. As long as you keep to the left after going under the freeway and follow the"Big Mo Tail"you'll be fine. I Just hate walking that paved road back to our cars. It's tough on the feet.

Crystal Jones
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray StarGray StarSun Feb 26 2017
Hiking

This was a good hike but I never did see a waterfall. Where is that at? Felt like we were walking uphill forever. We walked under the freeway off the bike track and took the dirt trail on the left. Does anyone know where we should of gone to see the waterfall? Hit me up please and let me know cause I would like to go back. crystal_newhouse@Yahoo.com

Roger Long
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray StarGray StarMon Jan 30 2017

Only made it half way to the towers gonna go all the way next week, was kinda confused couldn't see the towers not one time during the hike found out we were almost there. It's up up up !!!

Garrett Rice
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray StarGray StarThu Jan 26 2017
Hiking

Great easy hike. The waterfall was flowing pretty good! The trail is a bit washed out and muddy in some areas from the recent storms.

Kim Decker
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray StarGray StarMon Jan 16 2017

park at the golf course at green river. take the bike path for about a mile. you will see a point where you either continue on bike path or go left under freeway. go left, go under and you will see sign for chino hills state park. that it the entrance. then look for sign that says big no trail. keep going. it's about 2 miles or so till you get to the point the waterfall would be. we went, a couple days after the storms and no water fall just a trickle. BUT we would totally go back after the rain. this is an easy hike and it beautiful! #kidfriendly #plussizefriendly

J Hunter
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray StarGray StarGray StarGray StarMon Dec 26 2016

Off the 91, head north on Green River Rd and park just past the golf course entrance. There is a water fountain there to fill up your bottles. From there, walk down the incline to the start of the new bike path (through the gate) which runs parallel to the Santa Ana River. Ignore the first underpass (private road entrance) and continue walking for about 15-20 minutes. After a short incline and bend, you will come to an information kiosk on the right with the underpass leading to the trails to the left. Because of the complete absence of signage and construction activity it is easy to get confused and not even find the trailhead.

Showing results 1 - 25 of 148