Marine On Saint Croix has 2 hiking trails. These trails range from 4.6 to 5.8 miles in length. The most popular trail is William O’Brien State Park and Upper Park Trail. Trails.com member Michael S. recently completed William O’Brien State Park, Upper Park Trail.
William O’Brien State Park, Upper Park TrailView Trail Details
Marine on Saint Croix, MN
This hike begins at the interpretive center and is aptly named the Upper Park Trail. Geologically speaking, the St. Croix valley was cut by glaciers ...
William O'Brien State ParkView Trail Details
William O’Brien State Park is a popular—and easily accessible—recreation area conveniently located just one hour east of the Twin Cities. Here, ...