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© 2026 Roaming.Camp · Data from NPS, Recreation.gov, BLM, USFS, NWS, and the FCC.Operating on ceded ancestral land.Photography via Unsplash.

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Telegraph Cucamonga and Ontario Peaks

Hike

North Devils Backbone

Summits Mount San Antonio
Inside San Bernardino National Forest
3,242 ft of climbing

3.7 mi one way · 3,242 ft climb · 10,065 ft high point · Very hard

In San Bernardino National Forest · California · U.S. Forest Service

About Elevation Highlights Map Camp near here More hikes

About this hike

Mount San Antonio in San Bernardino National Forest receives 3,242 feet of climb on this very difficult trail. Pine Mountain, Dawson Peak, Wright Mountain, and West Baldy lie nearby.

Elevation

3,242 ft of gain and 1,498 ft of descent.

Camp near here

The closest places to sleep, measured from the trailhead.

See all on the map

3.4 mi from the trailhead
Stockton Flats Yellow Post Sites
Dispersed camping · California

More hikes nearby

Ranked the same way, within twenty-five miles.

4 mi from you
Baldy Bowl Trail
- Summits Mount San Antonio
- Inside Angeles National Forest
- 3,314 ft of climbing
2.6 mi of trails · 3,314 ft climb · Very hard
Angeles National Forest · Camp 3 mi away

Elevation along the trail from the start. Source: USGS 3DEP.

Highlights

What the trail reaches, measured from the start.

Mount San AntonioDestination · 3.7 mi in
Pine MountainAlong the way · 1.3 mi in
Dawson PeakAlong the way · 2.3 mi in
Wright MountainNearby · 0.0 mi in
West BaldyNearby · 3.7 mi in

Nearby reading

San Gabriel Mountains
Mount San Antonio
Baldy Bowl
Mount Harwood

Map

The route at the trailhead. Drag with two fingers, or hold a key to zoom.

Trail data: USFS, NPS, © OpenStreetMap contributors (ODbL). Elevation: USGS 3DEP via Mapzen terrain tiles. Nearby reading: Wikipedia. Photos: Wikimedia Commons contributors, licensed as shown on each photo. Download the trail and feature data.

At a glance

Length: 3.7 mi
Shape: One way
Gain: 3,242 ft
Descent: 1,498 ft
High point: 10,065 ft
Low point: 8,175 ft
Difficulty: Very hard
Managed by: U.S. Forest Service
State: California
Camps within 15 mi: 15
Trailhead: 34.3293° N · 117.6364° W

Get directions Open the map

5.0 mi from the trailhead

Table Mountain (Angeles)

Campground · California

5.9 mi from the trailhead

Appletree Campground

Campground · California

3 mi from you

Devils Backbone Trail

Summits Mount San Antonio
Inside Angeles National Forest
2,421 ft of climbing

2.7 mi one way · 2,421 ft climb · Very hard

Angeles National Forest · Camp 2 mi away

Islip Ridge Trail

Summits Mount Islip
Inside Angeles National Forest
2,731 ft of climbing

4.9 mi one way · 2,731 ft climb · Very hard

Angeles National Forest · Camp under a mile away

Mt. Baldy Trail

Summits Mount San Antonio
Inside Angeles National Forest
6,051 ft of climbing

5.7 mi one way · 6,051 ft climb · Very hard

Angeles National Forest · Camp 6 mi away

Rim Trail

Summits Mount Wilson
Inside Angeles National Forest
1,894 ft of climbing

3.4 mi one way · 1,894 ft climb · Moderate

Angeles National Forest · Camp 5 mi away

Ontario Peak Trail

Summits Ontario Peak
Inside Cucamonga Wilderness
1,466 ft of climbing

2.5 mi one way · 1,466 ft climb · Very hard

Cucamonga Wilderness · Camp 3 mi away

Signal

Cell coverage here

VerizonLTE · Fair

FCC coverage data · signal varies in remote terrain

More like this

Hikes that read like this one, wherever they are.

Devils Backbone Trail
- Summits Mount San Antonio
- Inside Angeles National Forest
- 2,421 ft of climbing
2.7 mi one way · 2,421 ft climb · Very hard
Angeles National Forest · Camp 2 mi away
Mt. Baldy Trail
- Summits Mount San Antonio
- Inside Angeles National Forest
- 6,051 ft of climbing
5.7 mi one way · 6,051 ft climb · Very hard
Angeles National Forest · Camp 6 mi away
Black Mountain
- Summits Black Mountain
- Inside San Bernardino National Forest
- 2,468 ft of climbing
3.4 mi one way · 2,468 ft climb · Very hard
San Bernardino National Forest · Camp 2 mi away
Ramona
- Inside San Bernardino National Forest
- 1,575 ft of climbing
- Camp 2 mi away
3.7 mi one way · 1,575 ft climb · Very hard
San Bernardino National Forest · Camp 2 mi away

Weather

7-day forecast

Thu58°50°Sunny
Fri59°52°Sunny
Sat62°56°Sunny
Sun63°54°Mostly Sunny
Mon60°52°Sunny
Tue62°52°Sunny
Wed64°Sunny

Thu: Sunny · wind 5 to 20 mph SW

National Weather Service · refreshed hourly