Take a journey through time as Ferrel Anderson of the Quad Cities Archeological Society discusses Prehistoric Quad Cities Area Mound Builders and the Spirit Path. From 500 BC to 1200 AD Quad Cities area Native Americans buried their dead in mounds. We know from the mound contents about many aspects of their lives, but it is from the arrangement of the mounds in groupings and other earthworks that we gain the crucial information of their belief system relating to the dead.