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three ts trail hike

Hike the Three T’s Trail

The Three T's Trail hike is one of the more peaceful hikes in the Mt Baldy area. This loop hike starts at Icehouse Canyon, climbs to Icehouse Saddle, then hits Timber Mountain, Telegraph Peak, Thunder Mountain, and then descends down to Baldy Notch, Manker Flats, and back to Icehouse Canyon. It's a long hike, but a favorite for those avoiding crowds.

4.5 / 5
17.6 miles (28.3 km)
8 hours
5635 ft (1718 m)
Trail Condition:
Marked Trails
Known For:
Views, Climbing
Best Time:
Early Morning

Three T's Trail Hike Trail Maps

Use this address in Google Maps to get to the trailhead:
Ice House Canyon Rd, Mt Baldy, CA, 91759, USA

Three T's Trail Hike location

The Three T's Trail hike trailhead is in Mt Baldy, about 1 hour east of downtown LA.

Three T’s Trail 3d map

After climbing up to Icehouse Saddle, the Three Tee's Trail follows the ridge line down to Baldy Notch. From there it's all downhill.

three ts trail elevation

There's a lot of climbing on this hike. The toughest climb is the one to Telegraph Peak (in the middle).

Interactive Map

Three T's Trail Hike Map Downloads

hiking map on garmin fenix 3

If you have GPS device (I use this one by Garmin and I love it) for your hike, load the GPX file below into your device to navigate the hike. For help on loading the GPX file, read this article on converting and transferring to a Garmin GPS.

Also, don’t rely on electronics as your sole means of navigation. There’s a basic printable PDF map below, and I strongly picking up a good topo map too.

View a Printable PDF Hike MapDownload the Hike GPX File

Three T's Trail Hike Video

Three T's Trail Hike Directions

three ts trail hike

What to Expect

Turn by Turn Directions

Icehouse Canyon Trailhead parking lot
The hike starts at the end of the Icehouse Canyon Trailhead parking lot. Don’t forget to display your parking pass on your dashboard.
Icehouse Canyon Trailhead bathrooms
The Icehouse Canyon Trailhead parking lot has bathrooms. Not the prettiest but they work.
trail sign
Look for this trail sign at the start of the trail. You’ll be hiking to Ice House Saddle.
permit box
Before you hike, you need to fill out a free permit. The permits are located in the small brown box between the hiking boards at the trailhead.
permit box
Filling out the permit is pretty simple, just follow instructions. If there are no forms left, grab a napkin or piece of paper from your car and do your best. You can also get more permits at the visitor’s center.
permit box
Drop the white copy of the permit in the side of the box, and keep the yellow copy on you until you’re done with the hike.
Icehouse Saddle trail
The Icehouse Saddle trail starts climbing along Icehouse Creek right away.
Icehouse Saddle trail
Avoid any small side trails to the right that head down to the creek.
cabins on Icehouse Saddle trail
There are some private cabins down here. Respect people’s property and stay on the trail.
ruins on Icehouse Saddle trail
Keep your eyes open for old ruins of cabins as well.
Chapman Trail junction
About 1 mile in you come to the Chapman Trail junction. Stay straight to Icehouse Saddle.
trail signs
The trail is well marked with signs.
border with the Cucamonga Wilderness
At just under 2 miles in, you reach the border with the Cucamonga Wilderness. Just keep going straight. You’ll notice the scenery starts to change around this point and feels more alpine.
The trail starts to climb on a series of switchbacks.
Avoid any small side trails and stay on the switchbacks. Easy to miss a turn when you’re working hard and your head is down.
mountain views
Don’t forget to turn around and take in the mountain views. Even on this first section, you’ve climbed quite a bit.
junction with the Chapman Trail
Eventually you’ll reach the junction with the Chapman Trail. Hike to the right towards Icehouse Saddle.
Icehouse Saddle
You made it to Icehouse Saddle! This is a big trail junction and a great place to refuel.
Three T's Trail
The Three T’s Trail is the hard left when you reach the saddle. All of the trails here are well marked.

If you want to do some other great hikes from Icehouse Saddle, check out my directions for Cucamonga Peak and Ontario Peak.

Three T's Trail
The Three T’s Trail quickly starts climbing again. You’ll (hopefully) notice less people after you start the Three T’s Trail.
Three T's Trail
Keep your eyes open on the Three T’s Trail…
deer on Three T's Trail
…you might see some wildlife. On this day I spotted a few groups of deer. On other days I’ve seen bighorn sheep.
trail to Timber Mountain
The spur to Timber Mountain is about 0.7 miles after Icehouse Saddle. Hike to the right up to Timber Mountain.
trail to Timber Mountain
Again, the trails are pretty well marked here.
trail to Timber Mountain
The trail to Timber Mountain is small but easy to follow.
cris hazzard at the Timber Mountain summit sign
Grab you summit selfie at the Timber Mountain summit sign.
Timber Mountain
There’s a little area a few feet to the east of the summit with great views. A good place for a snack.
Three T's Trail
Head back down to the Three T’s Trail and continue.
Three T's Trail
You’ll start to climb once again. Telegraph Peak is actually past this summit.
Three T's Trail views
The views start getting incredible here. As you cross some small mountain saddles, your views to the east will start opening up.
false summit
There are a lot of false summits as you climb toward Telegraph Peak.
Three T's Trail climb
There was one section on the climb in some manzanita where the trail dead ended on a cliff. If the trail dead ends or gets dangerous, turn around and head up, you probably missed a switchback.
Three T's Trail
Head up the switchbacks on the Three T’s Trail.
views of San Gorgonio
Look back and to the right as you climb for views of San Gorgonio.
Three T's Trail
There’s another rocky section where it’s easy to loose the trail. Again, look up and back for the switchback.
Three T's Trail
The trail is less defined on this stretch, but still visible. Just keep your eyes open.
Three T's Trail
Almost there! The trees get thinner as you climb toward Telegraph Peak.
views of Mt Baldy
Soon you’ll start getting views of Mt Baldy in the distance.
spur to the Telegraph Peak summit
You reach the spur to Telegraph Peak. There’s no sigh for it, just a sign for the Three T’s Trail. Make the right to hike up the spur to the Telegraph Peak summit.
spur to the Telegraph Peak summit.
Here’s detail of the sign where you hike right on the spur to the Telegraph Peak summit.
spur to the Telegraph Peak summit
The spur to the Telegraph Peak summit is easy to follow.
Telegraph Peak
Here you are, Telegraph Peak. This summit is a great place for a break and snack.
Telegraph Peak views
Telegraph Peak has good prominence, so you’ll get great 360 views, including Mt Baldy.
Telegraph Peak summit register
You can also sign the Telegraph Peak summit register.
three t's trail
When you’re done at the summit, head back down to the trail and make the right.

If you want to avoid the more populated trails, you can simply turn around here and retrace your steps back to the Icehouse Canyon Trailhead. The rest of the hike directions here follow a loop route back to the hike start.

Three T's Trail descends
The Three T’s Trail descends down to the last saddle.
Three T's Trail to Thunder Mountain
Here’s the last little climb on the Three T’s Trail to Thunder Mountain. It’s not so bad.
end of Three T's Trail
You’ve reached the end of the Three T’s Trail! Make the right at the end of the trail. You’ll be in the Thunder Mountain ski area.
trail in the Thunder Mountain ski area
Continue straight on the trail in the Thunder Mountain ski area.
Thunder Mountain summit
Hike to the right at the fork to the Thunder Mountain summit.
Thunder Mountain summit
Here’s the Thunder Mountain summit. Check it out and head back to the last fork.
Thunder Mountain summit
Make the hard right back at the fork.
dirt road
Avoid the steep ski run to the left and keep hiking on the dirt road.
dirt road to Baldy Notch
The road is easy to follow. You’ll see Baldy Notch in the distance. Baldy Notch is where you’re going.
hike to Baldy Notch
There’s a split. The sign says you can go either way. To the right the road continues and is longer, to the right you go down a (not too steep) ski run which is shorter. Choose your poison and head to Baldy Notch.
Baldy Notch
You’re at Baldy Notch. Here you can ring the big bell, get a bite to eat, or just continue through. You’ve got options. If you do want to eat, it’s all downhill from here, so feel free to gorge yourself.
Baldy Notch
The trail to continue down the mountain is by the ski rental joint.
dirt road
Head down the dirt road. This is the start of about 6 miles of descending. Enjoy it, you’ve earned it.
ski lift
You can take ski lift up to the notch if you want to revisit.
dirt road from Baldy Notch
If you look down you’ll see the trail winding down below you. You’ll be following this all the way down.
right turn on dirt road
When you come to the first intersection, make the right to continue on the dirt road.
right turn on dirt road
After a while there’s a side road to the left that steeply heads down to the ski lift parking area. Stay right on the more gradually descending road.
dirt road
The road is easy to follow. Just keep going down. You’ll see the small Ski Hut Trail coming in from the right.
Towards the bottom you’ll come to the falls.
road at Baldy
At the falls, the road becomes paved.
Manker Flats
And soon comes out to Manker Flats, where there are porta-potties.
Manker Flats
When you come to Mt Baldy Road, make the right.
Mt Baldy Road
The last stretch of the hike follows Mt Baldy Road down to the Icehouse Canyon Trailhead. The Manker Flats parking lot is usually pretty full, as it’s the main parking to hike Mt Baldy.
Mt Baldy Road
Keep an eye open for traffic as you walk down Mt Baldy Road. Stick to the side with the wide shoulder. When I did this walk, about a dozen people asked if I needed a ride, so if you want to skip hiking this section, you can probably hitch.
 Icehouse Canyon Trailhead
Eventually you’ll reach the junction with the Icehouse Canyon Trailhead. Make the left to end the hike
Icehouse Canyon Trailhead parking lot
Here you are, back at the Icehouse Canyon Trailhead parking lot. Hope you enjoyed the hike.

A quick note. These directions are meant as a guide for the hike, and not a definitive source. Conditions change, and the information here can be different based on time of day, weather, season, etc. There can be small side trails that you might see but I missed. I have made every effort to include all the information you need to complete the hike successfully. I recommend using this guide in conjunction with a map, GPX file, common sense, and call to the ranger station or park office. If you do the hike and notice something has changed, please contact me and I will update the guide.

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