William O'Brien State Park

Name: William O'Brien State Park
Address: William O'Brien State Park, 16821 O'Brien Trl N, Marine on St Croix, MN 55047, United States
Telephone: +1 651-539-4980
Rating: 4.6

★★★★★ 4.61327 reviews🕒 Data updated: 23 Sep 2026

USA Minnesota State park

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About William O'Brien State Park — Fact Summary

William O'Brien State Park is a USA featured on PlaceMap, a directory that gathers verified place data in one place. You will find it at William O'Brien State Park, 16821 O'Brien Trl N, Marine on St Croix, MN 55047, United States, an address that is easy to plug into any navigation app. Visitors give it a 4.6 out of 5 across 1327 reviews, a signal worth reading alongside the details below. The surrounding MN 55047 area adds more options if this spot turns out to be busy.

Need a quick confirmation? The listed number +1 651-539-4980 reaches the team directly. The official site http://www.dnr.state.mn.us/state_parks/william_obrien/index.html is also linked, putting the owner’s own information a click away.

Everything on this page is compiled automatically from the source data and was last refreshed on 23 Sep 2026; nothing unverifiable has been added. As with any plan, confirm opening hours and prices directly with William O'Brien State Park before heading out.