This volume introduces three archaeological sites found on the outskirts of Calgary, which date between 7000 and 8000 years of age. The Everblue Springs Site (EgPn-700), the Gooseberry Kill (EgPn-625), and the Snack Site (EgPn-633) are all early bison kill sites found in association with an assemblage of large corner notched projectile points.  These three sites make a significant contribution to clarifying the nature of cultural adaptations on the Northern Plains in this early time, which is considered to be transitional between the early Paleoindian and the Middle Prehistoric periods.