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U.S. Forest Service · Inyo National Forest

Lake Mary Campground

Lake Mary is the star of the Mammoth Lakes region. Of the 11 lakes in the area, Mary is the largest and most developed. Lake Mary Campground is a large facility with plenty of amenities in and around it. The lake provides a great base for activities like fishing, viewing waterfalls, hiking and backpacking. Lake Mary receives the highest number of trout stocks in the Mammoth Lakes Basin, and is well-known to anglers for its rainbow, brook and brown trout fishing. No swimming or wading is allowed in the lake.

Reservable48 sitesAccessibility info
Check availability on Recreation.gov ↗
Lake Mary Campground SITE 20
CLM

Campsites

Standard, no hookups48
Total48

Amenities & rules

Pets allowedCampfires allowedMax vehicle length 21 ftRVs & trailersTents

Compiled from site-level records; individual sites vary. Confirm on Recreation.gov or with the managing office.

Getting there

Take U.S. 395 to Mammoth Junction and Highway 203. Turn west on Highway 203 and drive through the town of Mammoth Lakes to the junction of Minaret Road/Highway 203 and Lake Mary Road. Continue straight through the intersection and drive 3.6 miles to Lake Mary Loop Drive. Turn right and drive 0.5 miles to the campground entrance.

Campgrounds nearby

Data source: Recreation.gov RIDB, retrieved August 30, 2026. The Campsite Atlas is an independent publication and is not affiliated with or endorsed by the Recreation.gov or any federal agency. Always confirm critical details on the official Recreation.gov page before you travel.