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.[2] 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.[3] Indian Mounds Regional Park is a component of the Mississippi National River and Recreation Area, a unit of the National Park System.