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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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Hike

Half Knob Trail

0.5 mi one way · 107 ft climb · 5,707 ft high point · Moderate

California · U.S. Forest Service

Elevation Highlights Map Camp near here More hikes

Elevation

107 ft of gain and 107 ft of descent.

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

Highlights

What the trail reaches, measured from the start.

Crystal LakeNearby · 0.1 mi in

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. Download the trail and feature data.

At a glance

Length: 0.5 mi
Shape: One way
Gain: 107 ft
Descent: 107 ft
High point: 5,707 ft
Low point: 5,619 ft
Difficulty: Moderate
Managed by: U.S. Forest Service
State: California
Trailhead: 34.3242° N · 117.8366° W

Get directions Open the map

Camp near here

The closest places to sleep, measured from the trailhead.

See all on the map

0.1 mi from the trailhead
Crystal Lake
Campground
0.6 mi from the trailhead

More hikes nearby

Ranked the same way, within twenty-five miles.

11 mi from you
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 · Very hard
San Bernardino National Forest · Camp 3 mi away

Deer Group Camp

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2.3 mi from the trailhead

Coldbrook Campground

Campground

12 mi from you

Baldy Bowl Trail

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3,314 ft of climbing

2.6 mi of trails · 3,314 ft climb · Very hard

Angeles National Forest · Camp 3 mi away

Devils Backbone Trail

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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

Weather

7-day forecast

Today63°35°Sunny
Fri64°37°Sunny
Sat67°41°Sunny
Sun65°46°Mostly Sunny
Mon59°45°Sunny
Tue63°48°Sunny
Wed65°50°Sunny

Today: Sunny · wind 5 to 10 mph SSW

National Weather Service · refreshed hourly

Signal

Cell coverage here

No carrier reports signal at this spot.

FCC coverage data · signal varies in remote terrain