Shawnee-Minisink Site in Smithfield Township, Pennsylvania, is a prehistoric archaeological site in the upper Delaware Valley that preserves a deeply buried Paleoindian camp with material from both the Paleoindian and Early Archaic periods. Archaeologists first investigated it in 1972, followed by larger excavations in 1974–1977 and 2003–2006. Finds included a heavily reworked Clovis point, scrapers, cores, and two hearths in the Clovis layer. Radiocarbon dating of the hearths produced a mean age of 10,937 ± 15 years Before Present, making the site crucial evidence for very early human activity in the region. Its significance was formally recognized in 2007.