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William O’Brien State Park, MN invites 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 in Minnesota 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, MN is home to 12 miles of hiking and cross-country ski trails sure to please beginners and experts alike. The 1,520-acre William O’Brien State Park also offers excellent bird watching along a migratory flyway, colorful wildflowers and year-round naturalist programs.

Tent camping and RV campsites are available at William O’Brien State Park. View William O'Brien State Park maps including maps on campgrounds and topography maps.

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
16821 O'Brien Trail North
St. Croix, MN 55047
Phone: (651) 433-0500

Reservations are available over the phone from 8 am until 8 pm daily or online through the Minnesota Department of Natural Resources (DNR): Call (866) 85PARKS / (866) 857-2757 or visit Minnesota State Parks and Trails Reservations

Click here for a complete list of attractions and things to do in the Twin Cities and Bloomington.