Contact Information
William O'Brien State Park
16821 O'Brien Trail NMarine On St Croix, MN 55047
About
William O’Brien State Park sits on the beautiful St. Croix River and is the perfect getaway to enjoy the outdoors. Hiking trails offer quiet exploration of the park's rolling, wooded hills. For anglers, the channels of the St. Croix have northerns, walleye, bass and trout. Ideal for canoeing, the river is also a migratory pathway that offers visitors an exciting diversity of sights and sounds. There are plenty of opportunities to stay overnight, with 124 campsites, 4 group camps, and 4 camper cabins. In the winter, the trails are groomed for skiing and snowshoers can explore the Riverside Trail.
Hours & Dates
Park permits: $35 annual, $26 second vehicle, $12 handicapped, or $7 daily. Camping fees are separate.Book an online reservation 24 hours a day.
Phone reservations can be made by calling 866-857-2757 (TTY: 952-936-4008) Apr–Sep, 8 a.m. to 8 p.m. D
More Information
Seasonality
- Open in fall
- Open in winter
- Open in summer
On-Site Facilities & Services
- Children's programs (scheduled, supervised)
- Evening entertainment (regularly scheduled)
- Located on a lake or river
On-Site Recreation
- Bike trail
- Canoes or kayaks available
- Cross-country ski trail (groomed)
- Hiking trail
- Lake/river access (boat ramp)
- Swimming beach
Green Practices
- Waste reduction/reuse/recycling
Attraction Attributes
- Can accommodate groups of 45 or more
Number/Type of Campsites
- Number of camping cabins: 4
- Number of camping cabins available in winter: 3
- Number of tent-only sites: 4
- Total number of campsites: 124
- Total number of campsites available in winter: 12
Campground Features
- 50 amp
- Camping accessible to people with disabilities
- Electric
- Flush toilets in campground
- Group camp facilities
- Hookups available in winter
- Hot showers in campground
- Lodge/central building
- Pets allowed in campsite
- Sanitary dump station
- Secluded campsites
Campground Type
- State Parks Campgrounds
Length of Stay
- Daily site rental
What's Nearby
Mentioned In
Take a paddleboat ride to explore the St. Croix River Valley / Thomas J. Wieland
Fall canoeing at St. Croix State Park / Christy Bruggenthies
Reeling in a smallmouth bass while kayak fishing on the Mississippi River in St. Cloud / Chelsea and Eric Eul, courtesy Clear Waters Outfitting
Magical forests and incredible hiking trails await just off the beaten path at Itasca State Park
Fall hiking at Afton State Park, southeast of St. Paul on the St. Croix River / Paul Vincent
Bring your dog to the posh Lora Hotel in downtown Stillwater / Paul Vincent
Recharge your batteries with a winter trip to the Como Conservatory / Visit Saint Paul
The Milky Way makes an appearance / Jackie Sherer