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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

Lost Ridge Trail

Near Crystal Lake
Inside Angeles National Forest
Camp under a mile away

1.0 mi one way · 624 ft climb · 6,323 ft high point · Moderate

In Angeles National Forest · California · U.S. Forest Service

About Elevation Highlights Map Camp near here More hikes

About this hike

Lost Ridge Trail climbs 624 ft to 6,323 ft near Crystal Lake in Angeles National Forest. Moderate, 1.0 mi.

Elevation

23 ft of gain and 624 ft of descent.

Camp near here

The closest places to sleep, measured from the trailhead.

See all on the map

0.0 mi from the trailhead
Deer Group Camp
Campground · California
0.5 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

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

Highlights

What the trail reaches, measured from the start.

Crystal LakeNearby · 1.0 mi in

Nearby reading

Crystal Lake Recreation Area
Mount Islip

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: 1.0 mi
Shape: One way
Gain: 23 ft
Descent: 624 ft
High point: 6,323 ft
Low point: 5,723 ft
Difficulty: Moderate
Managed by: U.S. Forest Service
State: California
Camps within 15 mi: 15
Trailhead: 34.3330° N · 117.8393° W

Get directions Open the map

Crystal Lake

Campground

2.9 mi from the trailhead

Coldbrook Campground

Campground

12 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

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

Weather

7-day forecast

Thu64°53°Sunny
Fri64°53°Sunny
Sat65°57°Sunny
Sun67°55°Mostly Sunny
Mon65°53°Sunny
Tue66°54°Sunny
Wed69°Sunny

Thu: Sunny · wind 5 to 10 mph S

National Weather Service · refreshed hourly

Signal

Cell coverage here

No carrier reports signal at this spot.

FCC coverage data · signal varies in remote terrain

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- Camp under a mile away
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Pinyon Ridge Trail
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- Camp under a mile away
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Blue Ridge
- Near Table Mountain
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- 1,211 ft of climbing
2.1 mi one way · 1,211 ft climb · Moderate
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Fall Creek Trail
- Near a waterfall
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- 1,615 ft of climbing
3.0 mi one way · 1,615 ft climb · Hard
Angeles National Forest · Camp 5 mi away