Discover Adventure at William O’Brien State Park
Situated at 16821 O’Brien Trl N, Marine on St Croix, MN, William O’Brien State Park is a beloved state park known for its exceptional outdoor opportunities. Boasting a remarkable 4.7-star rating from more than 1,200 visitors, this park is perfect for hiking, picnicking, and wildlife observation. Its spacious trails and scenic river views make it a top choice for families and adventurers alike looking to explore Minnesota’s natural beauty in a peaceful setting.
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Ethan Wise
a week agoI loved walking there.
Severin Mombauer
a week agoWorkout Generation
3 weeks agoExpect Ticks & Ranger TICKETS! Wish they would tend to the ticks not the tickets! I never have a problem in any state park. buy a pass stick it in window and go have a good time with family. Drove wrong vehicle so I parked outside the park boundary to get a park ranger ticket anyways. I get my proof of park pass and bring it in to the same redheaded Ranger guy who last year gave me a ticket for having it improperly stick to my windshield...I still have ticket even though he gave me a new park pass. So sick of stupid games with park rangers at obrien abuse of power. proof below
Julie Severson
3 weeks agoThere are lots of parking options and a small boat launch. Lake Alice is still dry, though. The River Trail is beautiful.
Dan Olson
a month agoBeautiful scenery, well kept and quiet. Newer clean bathrooms and picnic shelters