Cottonwood Canyon State Park, John Day River
River · Oregon
ℹ️ 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
Oregon's second-largest state park sprawls along the John Day River with cottonwood bottoms, a historic ranch and miles of river access. Swimmers float and wade the warm, slow river in summer, and the canyon's remoteness keeps the experience wide open.
Good to know
| Water type | River |
|---|---|
| Water temperature | 70-75 in summer |
| Best season | June-September |
| Fees | Oregon State Parks day-use fee |
| Reservations required | No |
| Hours | daylight hours |
| Parking | day-use lot |
| Amenities | restrooms, campground, picnic areas |
| County | Gilliam County |
| Nearest town | Wasco |
| Safety notes | no lifeguard; extreme heat; rattlesnakes; remote with limited services |
Map
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Frequently asked questions
Does Cottonwood Canyon State Park, John Day River require reservations?
No reservations are required at Cottonwood Canyon State Park, John Day River based on current information — but verify before you go.
Is there a fee to visit Cottonwood Canyon State Park, John Day River?
Reported fee info: Oregon State Parks day-use fee. Fees can change — confirm with the official link.
When is the best time to visit Cottonwood Canyon State Park, John Day River?
The best season is typically June-September.
⚠️ Verify before you go. Conditions, fees, reservations, and access can change — confirm details with the official link before visiting. Last verified: September 2026