Savanna Campground sits on the wooded banks of the St. Croix River in William O'Brien State Park, about an hour north of the Twin Cities. The campground offers electric sites, tent sites, walk-in areas, and camper cabins with electricity, plus direct access to hiking trails and river launch points. Facilities run mid-April through mid-October, with three cabins open year-round.
William O'Brien provides a mix of developed campsite types including drive‑in tent and RV sites (many with electricity), group campsites, walk‑in sites, and camper cabins (seasonal and year‑round). Reservations are required for all campsites.
Weather and SeasonsSummer delivers the warmest, most reliable conditions for paddling and swimming, with daytime highs in the low 70s to mid-80s°F. Park services and boat access run full schedule, and wildlife viewing peaks along the river. Fall brings comfortable hiking temperatures and hillsides of gold and red. Winter opens the trails for snowshoeing and cross-country skiing, though campground facilities close mid-October. Weekends draw heavy crowds from the Twin Cities in any season; weekday visits stay quieter.
Natural Features and SceneryThe campground occupies rolling hills covered in hardwood forest and oak savanna, with the St. Croix River flowing just beyond the tree line. Most sites sit under shade from large pines and oaks. Short trails from the campground lead to river overlooks, wetland boardwalks where beavers build lodges among cattails, and open meadows. At 837 feet elevation, the terrain slopes gently toward the water, and several sites offer glimpses of the valley through the canopy.
Geological RegionSt. Croix River valley (banks of the St. Croix River); rolling, wooded hills and wetlands
Scenic ViewsRiverbank and valley scenery from nearby trails; wooded campsites with large pines and seasonal wetland/meadow views on trail overlooks.