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Three T's Trail via Icehouse Canyon is a 14.6 mile moderately trafficked loop trail located near Mt Baldy, California that offers the chance to see wildlife and is rated as difficult. The trail offers a number of activity options and is accessible year-round. Dogs are also able to use this trail.

Length 14.6 mi Elevation gain 4,885 ft Route type Loop

Dog friendly

Backpacking

Camping

Hiking

Nature trips

Walking

Bird watching

Partially paved

Views

Wildlife

Description
Waypoints (18)
Contact
Tips
Getting There

A long, scenic loop from Icehouse Canyon to the Three T's Trail covering Timber Mtn, Telegraph Peak, and Thunder Mtn. Icehouse Canyon, nestled among cedar and pine, is a popular spot for casual hikers to enjoy alpine scenery and a year round stream. It is also served to more experienced hikers as a gateway to peaks in the Cucamonga Wilderness including the Three T’s Trail which summits Timber, Telegraph, and Thunder Mountains. From Icehouse trailhead, it is 3.6 miles to Icehouse Saddle, and an additional 5.6 miles to summit the three peaks to Baldy Notch. From Baldy Notch, you can walk down the access road or take the chairlift down during hours of operation. After reaching the base of Mt. Baldy (Manker Flat), the last 2.5 miles is paved back to the trailhead. This trip is a 14 mile loop, total. Another option is to backtrack the Three T's Trail after reaching Thunder Mtn. Getting to Icehouse Saddle is good exercise, but the Three T's Trail is strenuous. A lot of uphill and downhill hiking is required to pass over the prominences. The tallest is Telegraph Peak, at 8,985 ft.

California Travel and Tourism Commision, P.O. Box 1499 , Sacramento, CA, 95812-1499 Phone: 800-862-2543

Display an Adventure Pass at the Icehouse parking lot. The Mt. Baldy Visitor Center sells them, maps, and issues permits required for day and overnight use in Cucamonga Wilderness. The rangers are willing to leave permits on the bulletin board outside of normal business hours if you call ahead. The Mt. Baldy chairlift operates during the summer. Bring a full day's worth of water. The last opportunity to filter water is at Columbine Spring, which is only 2.4 miles from the trailhead. Pack some snacks, a flashlight, and thermal layers even during summer months. Keep the 10 essentials handy.

Directions from Claremont, CA: Travel on Foothill Boulevard to Mills Avenue. Take Mills Avenue until it turns into Mt. Baldy Road. Drive 12 miles north on Mt. Baldy Road to the trailhead, across the road from the Manker Flats Campground. Entry to Three T's is from Mt. Baldy Notch or Icehouse Canyon.

Weather
UV Index
Daylight
Reviews (94)
Photos (4806)
Recordings (49)
Completed (421)
Garrett Marcotte
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray StarGray StarAugust 12, 2020
Hiking
View Garrett's Recording
Rebecca Macias
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray StarGray StarJuly 31, 2020
Backpacking

Did this as an overnight last week (7/23-7/24) Great trail!! Beautiful views and challenging in all the right ways. I hiked in from Icehouse Canyon Thursday afternoon and set up camp near the summit of Timber. Completed the rest of the trail Friday. I’m not 100% sure if my total mileage but it was definitely more than 14 miles. The hike up the Telegraph is the most challenging part for sure but the views are *chef’s kiss* Thunder was easier to get to but the views up there are...meh. After Thunder it is straight downhill for about 6 miles back to Icehouse. That road walk nearly killed me. If I ever did this trail again I would either go with a friend and park a car at Manker Flat then drive back to Icehouse OR just back track to Icehouse via the trail. That road walk was awful which is why I gave this hike 4 stars. I will definitely be back!! **Don’t forget to fill out a free permit at the Icehouse trailhead! Even if you’re doing it in one day, you need a permit**

Trung Pham
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarJuly 5, 2020
Hiking

Three T's is one of my best hikes. Hiked yesterday on 7/5/20 started at 6:00 am and parking lot at Icehouse Canyon Trailhead was 80% full. Box for hiking permit forms was empty at trailhead, so didn't get a chance to fill out a form; so you might want to fill out your info on a blank sheet of paper. Scenic hike along the Icehouse Creek with a lot of shade. When we got to Icehouse Saddle, saw a lot people taking a break at this trail junction which converges from 5 different trails (Icehouse Canyon, Three T's, Middle Fork, Cucamonga Peak, & Ontario Peak). Taking the route to Three T's trail from that point was a tough climb, trail was well-maintained with a few fallen trees but easily negotiable; summitted Timber Mtn and Telegraph Peak with beautiful 360 deg views; but my favorite portion of this hike was the saddle between Timber and Telegraph Mtns giving spectacular views to the west and east sides and with the refreshing gust of wind made this the best experience. The climb up to Telegraph Peak was a killer and very strenuous given its elevation gain. Thunder Mtn was okay as there was ski lift hut there. From there it was all downhill with a steady decline. Got to Baldy Notch for a break with some drinks and refreshments from the restaurant, took a shortcut down the trail to Baldy Ski lift parking lot, then to Mankers Flat area. The route from there looping back to the trailhead was long and underwhelming as we followed the Mt Baldy Road down, the heat from the road asphalt and cars driving by made the walk unpleasant. Completed 16 miles within 8 hrs 10 mins moving time, adding on 1.5 hour of lunch and rest breaks in between. Drank 2 L of water. 75% of people were wearing mask. One of my favorite hikes, next time I would hike to Thunder Mtn or Telegraph Peak out-n-back to enjoy the scenic route and avoid the road.

View Trung's Recording
John Y.
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray StarGray StarJune 29, 2020
Hiking

This hike was completed on a weekday. The hike from the Icehouse Canyon trailhead to Icehouse Saddle, Timber, Telegraph, and Thunder was excellent, well marked, challenging, and remote. The top of Telegraph was especially beautiful, offering a near 360 degree view. That segment was easily 5 stars. However, the remaining 7 miles from Thunder, where the ski lifts begin and the Cucamonga Wilderness ends, to Baldy Notch, Manker Flat, Mt. Baldy Road, and the IHC trailhead was not fun. Walking on dirt roads and then a paved road sucked the life out of me. I would suggest turning around at Telegraph Peak and backtracking back to the IHC trailhead. 16.2 miles traveled with 4,892’ elevation gain, done in about 7 hours and 20 minutes.

View John's Recording
Alyssa Austria
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarJune 4, 2020
Hiking

Very tough hike, did it 6/4/20. Did an out and back version since we didn’t want to take the fire road plus driving road at the end to make the full loop and wanted to challenge ourselves with extra elevation. Started at icehouse canyon trailhead, then did timber, telegraph, and thunder mountain then turned around to head back to icehouse canyon trailhead. Having to regain elevation on the way back makes this tough when your legs are already tired! Ended up logging 16.5 miles and 5800 gain. Took us about 8.5 hrs including half hour of stops for breaks and eating. For the most part, Trail is very easy to navigate and well-maintained - only had to check alltrails app a few times. Arrived to trailhead at 630 AM (on a thursday) and about 10 cars in parking lot. Bathrooms at trailhead were in terrible condition, wouldn’t plan on using them. Drank about 2.5 liters of water. Bring sunblock and bug repellent! Do yourself a favor and stop by baldy lodge on the way down for their nachos! Perfect after a day on the trails.

View Alyssa's Recording
Alexis Wallace-Hempel
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarMay 26, 2020
Hiking

The Three T’s trail was a great challenge. Our trio began around 8:30am and finished the loop at 5:30pm. Overall, getting up to the saddle was fun - a mix of terrain on the way - and made for a nice place to get a quick snack. Afterwards, we made our way up to the first peak Timber, without much difficulty. Some switchbacks but overall spread out. Note that the trail was obstructed at one point by a fallen tree which was easy enough to navigate around. The trail reached its most difficult point (in my opinion) at this next section as we made the ascent to Telegraph. It was steep, and shaley at times which made the switchbacks especially difficult. We had lunch once getting to Telegraph which had great views of Thunder mountain, Mount Baldy, ski lifts, and a stunning 360° view of the mountain range. Eventually we got down to the parking lot and had to walk along the two way road to get back to out car which was mildly sketchy. Definitely not something you want to do at night. Also, we didn’t see any rattle snakes however there were signs posted that mentioned recent sightings - so be aware. Overall a great day to be outside and a beautiful time of year to be hiking. Highly recommended if you want a good butt kicking !

Emily Simkins
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HikingRocky
View Emily's Recording
Pedro Morfin
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarNovember 7, 2019
Hiking

Awesome trail

View Pedro's Recording
Amrit Kahlon
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarOctober 4, 2019
Hiking

Tough hike but rewarding.

Ryan Tester
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray StarGray StarOctober 1, 2019
Hiking

Did the Three T’s but turned back at Thunder Mountain and turned the hike into an out-and-back. Didn’t summit Telegraph on the way down. Didn’t summit Mt Timber at all. 16.8 miles, 5500 feet of elevation gained, just over 8 hours on the trail with stops. Definitely enjoyed the hike.

christy ph
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarSeptember 4, 2019
Hiking

I hiked up The 3 T's solo was not crowded, beautiful tail. Timber was easy, Telegraph was a bit challenging, but I love it, Thunder was okay. Hiked down to Baldy Notch & was lively. From the Notch, I hiked on the fire road to Manker flats. I was able to get a ride back to Ice House. Thanks God. The next time if I hike solo 3 T's, I will hike Timber, Telegraph, & head back to Icehouse. My recommendation is to bring a friend have a car shuttle back to Icehouse. Thank you American Conservation on clearing out the overgrown brush around Telegraph. I was able to find the trail to the peak.

Jesse Jackson
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarSeptember 2, 2019
Hiking

This is a beautiful and challenging hike! It is way more up than down. I love this trail! The end is ok but the whole first 3/4ths is stunning! If you go with a friend you can leave a car in both parking lots so you don’t have to walk on the road.

DJ Goodman
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray StarGray StarJuly 10, 2019
Hiking

Beautiful hike in the Angeles National Forest. We started at the Icehouse Canyon trailhead and made it to the saddle. Once there, we ran into a bunch of American Conservation folks who clean up the trail systems. I spoke with the leader who told us they were clearing out the overgrown manzanita brush around Telegraph. We definitely noticed a huge improvement. Hats off to those folks! After ascending Thunder Peak, we took the fire road to the “Too of the Notch” restaurant then took the ski lift down to the vehicle. This hike is marked appropriately and easy to stay on the correct trail. No problem or dangerous areas to report at this time.

Bex Majors
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarJune 30, 2019
HikingRocky

Challenging hike but the spectacular views were worth every step. The ascent to Icehouse Saddle is slow-going but the ascent to Mt Temple is gentle by comparison. Mile 6 (ascent to Telegraph Peak) is tough and the trail disappears at times so pay close attention. The trail around Telegraph Peak is overgrown in places so wear long pants. After the 7 mile point and with the exception of a short and comparatively easy ascent to Thunder Mountain, the rest of the hike is primarily a descent.. The majority of the trail is loose rock and some of the trail points are very narrow - good quality footwear with ankle support is a must. Much of the hike is exposed so you’ll need plenty of sunscreen and water - I took 5l water and got through 4l. The trail took me just over 7 hours at a relative pace with minimal stops. The hike to Icehouse Saddle is a popular one and the car park was full by the time I arrived at 8am. There were very few people on the rest of the trail until Baldy Notch when it picked up again. It was a tough but not over exhausting hike and I highly recommend.

Tom Kolesar
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray StarGray StarMay 31, 2019
Hiking

Great conditions in the mountains today. Perfect weather and NO (well, maybe a half dozen) people. Plenty of parking at Icehouse Canyon trailhead. Decided to head up the canyon and take a left on the Three Tee's Trail. Made the loop of Timber, Telegraph, Thunder and then down to Baldy Notch. Unfortunately, they were working on the chair lift and we had to hike down the fire road. Personally, the fire road is NOT my favorite. Checked out the waterfall before our new friend Paulie gave us a ride from Manker Flats back to the Icehouse Trailhead. It turned into a 14.5 mile, 4700+ft hike. To me, much more challenging than Cucamonga or Ontario Peaks. Essentially no snow on the trail, but there are still some patches on the ground. Get out there and enjoy!!!

Kenny Yu
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarMarch 18, 2019

did 3T's to Baldy. challenging in the end to tackle Baldy after descending from Telegraph. harder and longer than Ontario to sugarloaf. next bag of peaks will be iron mt to Baldy.

Arthur Gist
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarMarch 4, 2019
SnowshoeingRockySnow

Hard !! But the views are so worth it, the slush made for heinous travel.

View Arthur's Recording
Hans Gritsch
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarNovember 25, 2018
Hiking

Very nice trail with beautiful views. Icehouse creek with running water. We missed the entrance to Baldy Rd from the Notch and ended up hiking down a very rocky creek bed down to Manker Flat. Hitching a ride back to Icehouse is the way to go!

Stephanie Shoot
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarNovember 25, 2018
Hiking

I did not intend on hiking this trail when I showed up at the trailhead today but I was not disappointed. Pretty decent climbs and awesome views! Started at 730am and got done around 330pm, that’s with stopping at Baldy restaurant for a snack. Saw 6 rangers on trail so be careful if you like having your pup off leash ;) Ended up catching a ride back to my car instead of road walking, definitely the way to go.

Paige Fillion
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarNovember 5, 2018

I love this trail. It is never crowded. The views are most optimal. The switchbacks up Telegraph are gorgeous and the Peak is lovely with a small area between the rocks to grab a bite and look at Mt. Baldy. You can see the green ski hut and just wonder at the Bowl.

Daniel Lim
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarAugust 21, 2018
Hiking

It was a fun and challenging hike. Took our group of 9 about 9 hours to complete the hike from Icehouse Canyon Trailhead to the Manker Campground area where we had a second car parked to shuttle back to the Icehouse Canyon Trailhead. Wasnt as difficult as the Bear Canyon Trail to Baldy, but was a good challenge.

J P
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray StarGray StarJuly 22, 2018
Hiking

Great hike. Did the entire loop. Hiking to Telegraph had me on my tippy toes at some points but I enjoyed the challenge, as I’m training for Whitney! I’d recommend breaking for a snack at the saddle, on timber Mt. and then eating your main meal (if you pack one) on Telegraph. I stopped for a Pizza Port SIPA at Baldy Notch too. How fantastic is it to have a restaurant up in the mountains? It reminds me of Germany. I really didn’t like taking the paved road from Manker Flats back to our car at Icehouse Canyon. It’s not safe. Ppl drive fast and some are not accustomed to mountainous driving. Instead of enjoying the final stretch, I was constantly having to listen for cars. Also, you will have to cross back and forth over the road multiple times to remain visible to the traffic. If you’re able to have someone park at Manker Flats and Icehouse Canyon, do it.

Chris McKinnon
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray StarGray StarJune 11, 2018
Hiking

i parked at manker flats and road my bike to ice house after leaving my car by the trail exit, its all downhill to icehouse if u do this make sure your bike brakes are good but its a fun quick ride. this trail has a.bit of everything scrambles, uphill,down hill, sun and shade, limited water except beginning my gps clocked it at 15.5 miles but i took the road down from thunder the slops were to steep for my liking. a very quiet hike once on the three t's trail. This is training for something more intense but will give u some burn enjoy bring lots of water on hot day lots of exposure.

Ruan Krugel
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarMay 28, 2018
Hiking

Did this trail as an overnight. Added Baldy summit to it after staying at the Notch overnight. Did the three T’s day one and then Baldy from Devil’s backbone, down to Manker Flats on the other side. Recommend parking a Car at both Manker Flats and Icehouse, even if only about 2 miles, the road is dangerous to walk! Fantastic trail with lots of changes in scenery and spectacular views! Camping at the moths let’s you beat the crowds up to the summit and the back trail via the ski hut tends to be less traveled.

Jeff Travis
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarMay 26, 2018

Very nice, when the creek is flowing the sounds and sights are refreshing...can be strenuous once you hit the switchbacks.

$15 $40
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarApril 25, 2018
Hiking

Excellent Hike. Got a relatively early start in the morning from Icehouse Canyon parking lot. Went up to Icehouse Saddle, over to the Telegraph and Thunder Mtn, turned around and tagged Timber mtn on the return. Car to car in about 6 hours, right before it started to sprinkle. Great views and not too many people on this Saturday morn.

Daniel Ryan
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarJanuary 20, 2018

after telegraph it's brutal, we were going to turn back because the trail was icy but the sun was setting and we were almost to Thunder Mtn, we kept going but crampons and ice axe are recommended after Telegraph Mtn.

Lorraine Martinez
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarJanuary 17, 2018

very great hike we made it to timber mountain, and across the other side to telegraph mountain but the snow got so heavy and covered the trail we couldn't go further but it I will be back after it melts

Jack Torrance
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarDecember 6, 2017
Hiking

This is a nice hike with views of Cajon Pass, San Gorgonio, San Jacinto and all the peaks in the Manker Flats/Icehouse Canyon area. There is one rather steep section (about 3/4 mile of 30+ degree incline) between Timber and Telegraph Peak. The rest of the trail is very much in line with other hikes in that area. It's easy to follow and it's not technical, but certainly requires a bit of experience and some fitness to complete. Do yourself a favor and go with a friend and two cars. Park one at Manker Flats and park the other at Icehouse where you will start. Look I really am a purist when it comes to trail distance and elevation gain, but walking that road was boring and not very safe imho.

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