William O'Brien

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A great "get away" park only one hour from the Twin Cities, William O'Brien provides a beautiful setting for quality recreation along the banks of the St. Croix River. Hiking trails offer quiet exploration of the park's rolling, wooded hills. For anglers, the channels of the St. Croix have northerns, walleye, bass and trout. Ideal for canoeing, the river is also a migratory pathway that offers visitors an exciting diversity of sights and sounds. In the winter, snowshoeing, skiing and camping attract enthusiasts.

Tell me more about this park's wildlife, history, geology and landscape.

Visitor Alert!

Marine O'Brien Ski Race is January 31st. See you there.

Park Notes

Gift Cards:

Purchase a Minnesota State Parks Gift Card this holiday season!

Construction is now completed on the third year-round camper cabin!

The park now has 3 year-round camper cabins and 1 seasonal cabin (available April through October). One year-round camper cabin is accessible and all have electricity. Make a reservation now!

Firewood restrictions information:

Minnesota has enacted legislation that restricts firewood being brought to or used on DNR lands. Complete information and lists of vendors and locations where approved firewood is available are posted on the DNR Web site.
More information
Vendor List