Site contains 60-million-year-old dinosaur fossils, including triceratops and tyrannosaurus rex....
This 26-room, two-story frame building was built in 1883 as the summer residence of the Marquis' family. The Chateau is now a...
The On-A-Slant Indian Village is a 400-year-old Mandan Indian Village, which thrived for 200 years. The Mandan were hunters a...
Two 66-foot speed slides, two 45-foot innertube slides, 800-foot lazy river tube ride. Kids pool. Two go-cart tracks, 18-hole...
Listed on the National Register of Historic Places and as a National Historic Landmark, the site preserves a la...