A causeway named for these creatures stretched from the Grand Plaza to a separate location named for these creatures surveyed by Ephraim G. Squier and Edwin Hamilton Davis. The Adena culture is credited with the creation of a site dedicated to these creatures around 320 BC (10[1])that was occupied by the Hopewell culture. The name of the (10[1])Sioux tribes stems from an Objibwe exonym for ■END■