MCKEAN LITHIC TECHNOLOGY AT LIGHTNING SPRING

During the 1980 excavation of the Lightning Spring site in the North C ave Hills of South Dakota, a group of Tongue River silicified sediment bifaces was discovered in one of the deeper McKean levels of the site . In addition to these bifaces, a large suite of Duncan projectile poi nts was recovered from the four McKean occupations. The seven bifaces provide significant insight into the McKean phase lithic technological system used in this area of the Northwestern Plains, and the associat ed Duncan points help explicate the projectile point rejuvenation syst em used by these McKean hunters.