River beach
William O'Brien State Park beach
In William O'Brien State Park. On the Saint Croix River.
Details
- Run by
- Minnesota DNR
- Park
- William O'Brien State Park
- River
- Saint Croix River
- Beach surface
- sand
Sources
- OpenStreetMap
Checked September 24, 2026 - Minnesota DNR ParkFinder
Checked September 24, 2026
Beach water can change within a day of heavy rain. A result here is only as current as the date shown next to it, and outside Memorial Day to Labor Day most beaches are not tested at all. No result listed does not mean the water is safe. Look for posted signs at the beach, and check the agency’s own page before you swim.