The Welling site is an archaeological site of the Paleo-Indian period, meaning the time of the earliest humans. Located in Coshocton County, Ohio, it was a site for quarrying stone in the Upper Mercer chert source area. Based upon the microwear analysis of stone tools, it is believed to be a base camp where people learned and shared Clovis tool-making techniques, ate, exchanged information, and perhaps found mates from others groups.