Check out some of the best hiking, walking and backpacking routes in Washington County, Minnesota. The
William O'Brien State Park Loop is the most popular trail. There are trails of various difficulty levels including easy and medium. The trail with the highest elevation climb is the
Ojibway Park Loop and the trail with the least amount of climbing is the
Saint Croix River via Riverside Loop Trail. The longest trail is the
Saint Croix River and Afton State Park via Prairie Loop at 11.9 km. For a shorter adventure you can try the
Autumn Hills Park Loop at 494 m. Get off line access to Shop, Healthcare, Fastfood, and Shelter locations and much more with a Hiiker subscription.