Cranberry Creek Mound Group State Natural Area

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Cranberry Creek Mound Group preserves one of the most significant archeological sites in Wisconsin and one of the largest and best preserved mound complexes in the Upper Midwest. The site contains excellent examples of conical, linear, oval, and effigy mounds built by Native Americans of the Woodland period (ca. 100-800 A.D.). Although the northern cluster has been altered somewhat by plowing, the southern cluster is unaltered. Among the mounds featured are bear/panther mounds and a 50 foot long bird effigy mound with a wingspan of 125 feet. Although the mounds are featured, the site also contains a diversity of natural communities. Along the ditched channel of Cranberry Creek, large river birch and silver and red maples dominate the floodplain forest. Also present is an old-growth northern dry forest with large jack pine and an open pine-oak forest. Since 1917, archaeological investigations of mapping and interpretation have been conducted and the site is part of a larger complex of preserved and protected mounds located in adjacent and nearby areas. Cranberry Creek Mound Group is owned by the DNR and was designated a State Natural Area in 1986.