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State Park

Photo: Tony Webster from Minneapolis, Minnesota, United StatesCC BY-SA 2.0Wikimedia Commons

William O'Brien State Park

Minnesota · MN

4

Trails

1

Campgrounds

Official sources & verification

Managed by Minnesota Department of Natural Resources

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Source of truth

We display cached information from agency feeds. Hours, fees, permits, closures, fire restrictions, and conditions change without notice. Outdoors is not the permitting authority. Confirm current conditions for this park using the links above before you go — you are responsible for compliance. Last verified by us: Oct 13, 2026. Spot an error in our data?

About

William O'Brien State Park is a 1,520-acre (6.2 km2) state park of Minnesota, USA, along the St. Croix River. Its hiking trails traverse rolling glacial moraine, riparian zones, restored oak savanna, wooded areas and bogs. It is a popular place for birdwatching, picnics, camping, cross-country skiing, canoeing, fishing, and other typical outdoor recreational activities.

Source: Wikipedia — text licensed CC BY-SA 4.0. Verify alerts and operational details with the managing agency below.

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