Natural swimming hole
Fort Peck Reservoir
Lake · Montana
Community-reported spot. Details below are compiled from public sources and are reported to be accurate — always verify locally before visiting.
About this swimming hole
Montana's largest reservoir, with swim beaches and Missouri River breaks scenery. Fort Peck's water warms nicely and the scale is immense. An eastern Montana lake swim.
Good to know
| Water type | Lake |
|---|---|
| Water temperature | 70s summer |
| Depth | designated swim beaches |
| Best season | June-September |
| Fees | Free |
| Reservations required | No |
| Hours | sunrise-sunset |
| Parking | Day-use lots |
| Amenities | restrooms, picnic tables |
| County | Valley County |
| Nearest town | Fort Peck |
| Safety notes | No lifeguard |
Map
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Frequently asked questions
Can you swim in Fort Peck Reservoir?
Yes — Fort Peck Reservoir is listed as a natural swimming spot in Montana. Reported water temperature: 70s summer. Heads-up: No lifeguard. There are rarely lifeguards at natural swimming holes — verify conditions locally before you go.
Does Fort Peck Reservoir require reservations?
No reservations are required at Fort Peck Reservoir based on current information — but verify before you go.
Is there a fee to visit Fort Peck Reservoir?
Reported fee info: Free. Fees can change — confirm with the official link.
When is the best time to visit Fort Peck Reservoir?
The best season is typically June-September.