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Status unknown — verify before visiting

We don't have current condition data for this trail. Check with the land manager before you go.

See California trail conditions
Reds Meadow to Gladus Lake, Rosalie Lake, Shadow Lake, Garnet Lake, Thousand Islands Lake
ExpertOut and Back
California

Reds Meadow to Gladus Lake, Rosalie Lake, Shadow Lake, Garnet Lake, Thousand Islands Lake

Mammoth Lakes, California

26.8 mi

Distance

7,490 ft

Elev. Gain

12h 3m

Est. Time

Out & Back

Route Type

Expert

Difficulty

About This Trail

The Reds Meadow to Thousand Islands Lake trail is a challenging out-and-back route located near Mammoth Lakes, California. This trail extends over 26.8 miles and features a significant elevation gain of 7,490 feet, reaching a maximum elevation of 3,102 meters (10,177 feet). The trail traverses through a scenic region renowned for its picturesque alpine lakes, including Gladus Lake, Rosalie Lake, and Shadow Lake. The endpoint at Thousand Islands Lake is known for its stunning views of multiple islands dotted across the clear blue waters, framed by rugged mountain peaks.

Trail Conditions

Trail Conditions

Unknown

We have no current condition data for this trail. Check with the operator before you go, and submit a report below if you've been recently.

No recent condition reports. Be the first to share what you see on the trail.

Hazards & Warnings

steep elevation gainhigh altituderemote location

Elevation Profile

Min:2,312 ft
Max:3,102 ft
2,283 ft
2,283 ft
2,312 ft2,575 ft2,839 ft3,102 ft0.0 mi6.7 mi13.4 mi20.1 mi26.8 mi

Trail Details

Route Type
Out & Back
Surface
Dirt

Official sources & verification

We don't have curated agency sources for this trail in our cache yet. Outdoors is not the permitting authority — confirm conditions, permits, and access with the managing agency before you go. If you know who manages this trail, please tell us.

Best Seasons

SummerFall

Highlights

alpine lakesmountain views

Reviews

No reviews yet

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Legacy import — verify before navigating

Path geometry came from our pre-launch legacy database. Routes have not yet been re-verified against the operator and may differ from the actual trail.

Hunt context

This trail crosses hunting units

During hunting seasons, wear blaze orange and check regulations — see the California hunting page

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Stay nearby

Campgrounds near this trail

More campgrounds

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Spot an error in our data on Reds Meadow to Gladus Lake, Rosalie Lake, Shadow Lake, Garnet Lake, Thousand Islands Lake?