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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 Keys

Ends at Middle Lost Keys Lake
Inside John Muir Wilderness

1.1 mi out & back, trail only · 364 ft gain · 9,409 ft high point · Moderate

Reached from Rainbow Falls Trailhead, 13.4 mi each way

In John Muir Wilderness · California · U.S. Forest Service

About Elevation Highlights Map Camp near here More hikes

About this hike

Lost Keys reaches Middle and Lower Lost Keys Lakes in John Muir Wilderness, climbing 385 feet over 0.5 miles one way.

Elevation

364 ft of gain round trip.

Camp near here

The closest places to sleep, measured from the trailhead.

See all on the map

2.2 mi from the trailhead
Pumice Flat Group Camp
Campground · California

More hikes nearby

Ranked the same way, within twenty-five miles.

25 mi from you
Clouds Rest Trail
- Ends at Tenaya Lake
- Inside Yosemite Wilderness
- 3,513 ft of climbing
18.9 mi out & back · 6,024 ft gain
Yosemite Wilderness · Camp 6 mi away

Out: 360 ft up, returns the same way. Source: USGS 3DEP.

Highlights

What the trail reaches, measured from the start.

Middle Lost Keys LakeDestination · 0.5 mi in
Lower Lost Keys LakeNearby · 0.4 mi in
Upper Lost Keys LakeNearby · 0.5 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: 1.1 mi, trail only
Shape: Out & back
Gain: 364 ft round trip
High point: 9,409 ft
Low point: 9,045 ft
Difficulty: Moderate
Managed by: U.S. Forest Service
State: California
Camps within 15 mi: 19
Trailhead: 37.6140° N · 119.0766° W

Get directions Open the map

3.8 mi from the trailhead

Twin Lakes Campground

Campground · California

3.9 mi from the trailhead

Lake Mary Campground

Campground

3 mi from you

Fish Creek

Ends at Rainbow Falls
Inside John Muir Wilderness
1,103 ft of climbing

10.9 mi out & back · 1,943 ft gain · Moderate

John Muir Wilderness · Camp 5 mi away

Lembert Dome Trail

Summits Lembert Dome
Inside Yosemite National Park
Camp under a mile away

1.9 mi out & back · 747 ft gain · Moderate

Yosemite National Park · Camp under a mile away

Dragonsback Trail

Ends at Twin Lakes
Inside Inyo National Forest
2,333 ft of climbing

6.0 mi out & back · 2,333 ft gain · Very hard

Inyo National Forest · Camp 2 mi away

Gaylor Lakes Trail

Ends at Tioga Pass
Inside Yosemite National Park
1,037 ft of climbing

3.8 mi out & back · 1,232 ft gain · Moderate

Yosemite National Park · Camp 3 mi away

Shadow Creek

Ends at Cecile Lake
Inside Ansel Adams Wilderness
2,719 ft of climbing

16.4 mi out & back · 3,262 ft gain · Very hard

Ansel Adams Wilderness · Camp 3 mi away

Signal

Cell coverage here

VerizonLTE · Excellent
AT&TNo signal

FCC coverage data · signal varies in remote terrain

Weather

7-day forecast

Thu71°43°Sunny
Fri66°40°Sunny
Sat66°39°Sunny
Sun61°34°Sunny
Mon63°36°Sunny
Tue68°39°Sunny
Wed70°Sunny

Thu: Sunny · wind 0 to 10 mph SSW

National Weather Service · refreshed hourly

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- Tops out at 11,469 ft
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John Muir Wilderness · Camp 6 mi away
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Muir Lake
- Ends at Muir Lake
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Golden Lake
- Ends at Golden Lake
- Inside John Muir Wilderness
- Tops out at 11,061 ft
1.6 mi out & back · 608 ft gain · Moderate
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