Lake Mary (Mammoth Lakes Basin)
- Type
- Alpine lake
- Elevation
- About 8,900 ft
- Motorized boating
- Allowed
- Rentals
- Lake Mary Marina, Pokonobe Marina, Crystal Crag Lodge
.jpg?width=1280 "Photo: Don Graham from Redlands, CA, USA, CC BY-SA 2.0, via Wikimedia Commons")
- Boat launch
- Fishing
- Boat rentals
- Camping
- Restrooms
About this lake
Lake Mary is in the Mammoth Lakes Basin, a few minutes' drive above the town of Mammoth Lakes on Lake Mary Road, at about 8,900 feet in the Inyo National Forest.
On the water
The Forest Service lists Lake Mary among the basin lakes open to motorized boating, and there's a public launch off Lake Mary Road. Two summer concessions rent boats: Lake Mary Marina and Pokonobe Marina. Trailered boats need the free Eastern Sierra mussel inspection and sticker before launching.
Staying over
Crystal Crag Lodge on the southwest shore rents cabins and boats. Lake Mary Campground has 48 sites at $34 a night, reserved through Recreation.gov, with bear lockers at every site; Coldwater and Pine City campgrounds are close by.
Winter
The road is open in summer. In winter the lake is reached only on groomed cross-country ski and snowshoe trails.
Getting there & access
Getting there
Take Highway 203 west through Mammoth Lakes; it becomes Lake Mary Road and climbs into the Lakes Basin.
Season
The road is open in summer. In winter the basin is reached on groomed ski and snowshoe trails.
Mussel inspection
Since April 2026, Mono County requires every trailered boat and jet ski to be inspected before launching. Inspections, decontamination and the Eastern Sierra mussel sticker are free at Eastern Sierra WID stations (list at EasternSierraWID.com). Residents inspect once a year; visitors inspect on entering Mono or Inyo County, and again after launching anywhere outside the two counties. Arrive clean, drained and dry.
- Campground
- 48 sites, $34/night
- Mussel rule
- Inspection and Eastern Sierra sticker
- Welcome Center
- (760) 924-5500
What's here
Launch
Public boat launch off Lake Mary Road
Boat rentals
Summer boat rentals at Lake Mary Marina and Pokonobe Marina
Camping
Lake Mary Campground, 48 sites with bear lockers
Fishing
Lakeside fishing trails; tackle sold at the marina
Cabins
Lakeside cabins at Crystal Crag Lodge
Restrooms
Flush toilets at the campground
Rules & official resources
- California Boater Card required for all operators of motorized vessels, regardless of age, since January 1, 2025dbw.parks.ca.gov ↗
- Trailered boats and jet skis must be inspected at a free Eastern Sierra WID station and carry the Eastern Sierra mussel sticker before launching; launching uninspected can bring fines, misdemeanor charges or impoundmentftp.monocounty.ca.gov ↗
- Kayaks, canoes, paddleboards and other small non-motorized craft must be cleaned, drained, dried and self-inspected before launching somewhere newmonocounty.org ↗
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