In 1885, T. H. Lewis mapped a mound group on a bluff top overlooking the confluence of the Cannon and Mississippi Rivers. Unlike other mound groups in the region, this set contained a flat-topped, rectangular mound, a type generally used as the base for a structure in which chiefs or other important individuals lived and extremely rare in the northern Mississippi River Valley. Almost 100 years later, archaeologists discovered an eight-acre village site between the mounds and the bluff edge. Because it stood next to an area of rapidly developing industry, the site was dubbed the Energy Park site, and through the efforts of concerned citizens, professional archaeologists, and the State of Minnesota, much of it was purchased and preserved. More generally known now as the Red Wing Archaeological Preserve, it dates to between A.D. 1100 and 1300. It is the smallest of the area villages, but it may hold special significance because of the associated flat-topped mound. Artifact collections from each Red Wing village show both similarities and differences; for example, decorations on a large cooking vessel from the preserve are rarely seen at other area villages. Patterns in the distribution of artifacts and features also provide information about activity areas, and here a series of post molds and storage or refuse pits indicate the possible location of a house.