William O’Brien State Park invites Minnesota travelers to enjoy a refreshing escape from big-city life only an hour away from the Bloomington-Twin Cities metro area. Located along the St. Croix River on land formerly belonging to lumber companies, William O’Brien State Park offers a variety of recreational opportunities to nature-lovers and outdoor enthusiasts.

Highlights of William O’Brien State Park include canoeing on the St. Croix River, fishing for walleye and bass, and swimming at a Lake Alice beach. In addition, William O’Brien State Park is home to 12 miles of hiking and cross-country ski trails sure to please beginners and experts alike. The 1,520-acre Minnesota State Park also offers excellent birdwatching along a migratory flyway, colorful wildflowers and year-round naturalist programs.

Tent camping and RV campsites are available at William O’Brien State Park.

William O’Brien State Park Hours of Operation
Open daily from 8 a.m. - 10 p.m. 

William O’Brien State Park Entrance Fees

  *Requires a minimum of 10 vehicles and advance notice of 24 hours.

**For vehicles bearing a handicapped license plate issued by the State of Minnesota.

William O’Brien State Park Lodging Fees

A nonrefundable fee of $8.50 will be added to reservations for the camper cabin, which does not have electricity.

Contact the park for camping fees.

(Fees and hours subject to change without notice and from what is listed on this web site)

William O’Brien State Park Location
William O’Brien State Park is located northeast of the Bloomington-Twin Cities area, near the community of Marine on St. Croix.

William O’Brien State Park Contact Information
16821 O'Brien Trail North
Marine on St. Croix, MN 55047
(651) 433-0500
Web Site: www.dnr.state.mn.us/state_parks/william_obrien/index.html

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