Nestled along the scenic St. Croix River, Interstate State Park Campground offers a front-row seat to one of Minnesota's most fascinating geological wonders. Choose from wooded, shaded sites—including coveted riverfront spots—and wake up steps away from ancient glacial potholes, dramatic basalt cliffs, and trails that wind through Ice Age history.
A developed campground with single-family campsites (reported as 37 sites), a mix of electric and non-electric sites, and group camping options; accommodates both car camping and RVs.
Historical Significance
Interstate State Park is noted for its Ice Age geology — especially deep, well-preserved glacial potholes formed by glacial meltwater — and the park’s nature center and interpretive displays present the area’s geologic history. The park straddles the St. Croix River and is part of a historic river corridor linking Minnesota and Wisconsin.Weather and SeasonsEach season paints Interstate with its own character. Spring awakens the trails with delicate wildflowers pushing through the forest floor, while summer brings the park to life with paddlers, swimmers, and families exploring every corner—it's peak season for good reason. Come fall, the hardwood forest erupts in spectacular color, making every hike a memorable one. Since the campground and facilities operate seasonally, check the park's website for current opening and closing dates before planning your adventure.
Natural Features and SceneryYour campsite sits cradled in the St. Croix River valley, where towering basalt cliffs and rocky outcrops peek through a canopy of mixed hardwoods. Just a short walk from your tent or RV, you'll discover the park's famous glacial potholes—deep, circular stone wells carved by swirling meltwater thousands of years ago—and the river-sculpted Dalles that showcase nature's patient artistry. In spring, woodland wildflowers carpet the forest floor, while autumn transforms the valley into a brilliant tapestry of reds, oranges, and golds.
Geological RegionSt. Croix River valley (the Dalles) — basalt and sandstone bedrock with prominent Ice Age glacial potholes and river-carved cliffs
Scenic ViewsSeveral campsites and nearby trails offer direct or near-direct views of the St. Croix River and cliff-top overlooks into the Dalles. River Trail and other overlooks provide elevated valley and river vistas; riverfront sites are the most scenic and fill early.