William O'Brien State Park, Minnesota
William O'Brien State Park, Minnesota Tony Webster from Minneapolis, Minnesota, United States · CC BY-SA 2.0

William O'Brien State Park

State Park · Minnesota · Minnesota Department of Natural Resources

Plan your visit

Trails

22.7 mi of maintained trail measured from the agency's own trail mapping

  • 2.5 biking
  • 22.7 hiking
  • 3.1 winter use

Camping & lodging

120 mapped camping locations

Site types & reservations: see the official site.

Know before you go

Official site
www.dnr.state.mn.us
Managed by
Minnesota Department of Natural Resources
Established
1947

Getting there

Directions on Google Maps →

What's here

Activities & features: Biking · Camping · Dump Station · Group Camping · Hiking · Pets Allowed · Primitive Camping · Rv Camping · Shower · Trail · Winter Recreation

Photos

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79 parks mapped in Minnesota

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Sources: Wikimedia Commons / editorial, State agency, USGS PAD-US · updated 2026-08-12