About Grand Mound (Minnesota)
Tumuluses, Historic, Burial Places, Archaeology, Interesting Places, Other Archaeological Sites
Grand Mound is a prehistoric burial site in Koochiching County, Minnesota, United States. It is the largest surviving prehistoric structure in the upper Midwest, dating back to 200 BCE. The site was listed as a National Historic Landmark on June 23, 2011.
Source From:
Wikipedia
MN 11, Koochiching County, Minnesota, United States of America