Telegraph Peak via Manker Flat and Baldy Notch

HARD 3 reviews
#38 of 127 trails in

Telegraph Peak via Manker Flat and Baldy Notch is a 11.8 mile out and back trail located near Mt Baldy, California that offers scenic views and is rated as difficult. The trail is primarily used for hiking and horses and is accessible from March until November. Dogs and horses are also able to use this trail.

11.8 miles 3746 feet Out & Back

dog friendly


horseback riding


Splendid high country, wilderness, and breathtaking peak with a 360-degree view Telegraph Peak (8985') stands as the crowning glory of the celebrated Three T's, with Thunder Mountain (8587') to its north, and Timber Mountain (8303') to its south. This trio of peaks treats you to some of the most superb high country in the San Gabriels. For this hike, you'll be attaining just two of the Three T's, Thunder and Telegraph. Walk the dirt road from Manker Flat 3.6 miles to Baldy Notch. Pick up the trail straight ahead on east edge of the notch and follow the road south 1.5 miles to the marked Three T's trailhead (on the west ridge .10 mile below the summit of Thunder Mt.). Descend southeast into the Cucamonga Wilderness using the single-track trail to the saddle then follow the trail as it steeply climbs the northwest face of Telegraph to the ridge, 1.2 miles. Turn left (east) at the signed trail and climb the ridge .25 mile to Telegraph. You can cut 3.6 or 7.2 miles from your hike by riding the ski lift up and/or down, weekends and holidays.

17 days ago

What an awesome hike today. Proud to have joined Lesley and other SoCal Hikers for a Memorial Hike in honor of Craig Cambras. Beautiful day for this hike.

6 months ago

I did the telegram pic. Via ice house , I did all of the three pic. I went all to Mt Baldy Natch, and then ask for right to come back to the icehouse, it was really nice the weather was perfect.

5 years ago

Hiked this as part of the Three T's. Great trail and it was a ghost town when I was there. There was freezing cold wind and clear as a bell. Great day!