St. Croix River at Franconia Boom Site
River · Minnesota
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
The Franconia Boom Site on the St. Croix River pairs a sandy swimming beach with 19th-century logging history in Interstate's Minnesota unit. Swimmers wade the gentle river beneath the historic boom piers. It is the quieter counterpart to the Wisconsin side's beach.
Good to know
| Water type | River |
|---|---|
| Water temperature | 70s in summer |
| Depth | shallow to moderate river |
| Best season | June-August |
| Fees | Free |
| Reservations required | No |
| Parking | parking area; half-mile walk to the river |
| Amenities | picnic shelter, grills, fire rings |
| County | Chisago County |
| Nearest town | Franconia |
| Safety notes | no lifeguard; river current |
Map
Nearby swimming holes
Frequently asked questions
Does St. Croix River at Franconia Boom Site require reservations?
No reservations are required at St. Croix River at Franconia Boom Site based on current information — but verify before you go.
Is there a fee to visit St. Croix River at Franconia Boom Site?
Reported fee info: Free. Fees can change — confirm with the official link.
When is the best time to visit St. Croix River at Franconia Boom Site?
The best season is typically June-August.
⚠️ Verify before you go. Conditions, fees, reservations, and access can change — confirm details with the official link before visiting. Last verified: September 2026