Natural swimming hole
Boulder River (Montana)
River · 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
The Boulder River's valley pools near Big Timber, with Absaroka views and clear water. The river runs cold and the setting is scenic. A Sweet Grass County swim.
Good to know
| Water type | River |
|---|---|
| Water temperature | cold |
| Depth | wading to ~5 ft |
| Best season | June-September |
| Fees | Free |
| Reservations required | No |
| Hours | sunrise-sunset |
| Parking | Fishing access lots |
| County | Sweet Grass County |
| Nearest town | Big Timber |
| Safety notes | No lifeguard |
Map
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Frequently asked questions
Can you swim in Boulder River (Montana)?
Yes — Boulder River (Montana) is listed as a natural swimming spot in Montana. Reported water temperature: cold. Heads-up: No lifeguard. There are rarely lifeguards at natural swimming holes — verify conditions locally before you go.
Does Boulder River (Montana) require reservations?
No reservations are required at Boulder River (Montana) based on current information — but verify before you go.
Is there a fee to visit Boulder River (Montana)?
Reported fee info: Free. Fees can change — confirm with the official link.
When is the best time to visit Boulder River (Montana)?
The best season is typically June-September.