The Orion Correlation of three main mounds in Indian Mounds Park in St Paul, MN. Orion's Belt en.wikipedia.org/wiki/File:Orion_-_pyramids.jpg en.wikipedia.org/wiki/Indian_Mounds_Park_%28Saint_Paul,_Minnesota%29 Indian Mounds Regional Park is a public park in Saint Paul, Minnesota, featuring 6 prehistoric Native American burial mounds overlooking the Mississippi River. The oldest mounds were constructed 1,500--2,000 years ago by people of the Hopewell tradition. Later the Dakota interred their dead there as well. At least 31 more mounds were destroyed by development in the late 19th century. They were the tallest Native American mounds in Minnesota or Wisconsin (except for the unique 45-foot (14 m) Grand Mound outside International Falls, Minnesota), and comprise one of the northwesternmost Hopewellian sites in North America. Indian Mounds Regional Park is a component of the Mississippi National River and Recreation Area, a unit of the National Park System.