how is the above mentioned group of people classified?
They  are generally classified by lithic reduction or lithic core "styles" and by regional adaptations.
Paleo-Indians
Paleo-Indians are generally classified by lithic reduction or lithic core "styles" and by regional adaptations.
what is referred as bull run river? It is a tributary of the Sandy River. where is it situated? U.S. state of Oregon who were its first inhabitants? Paleo-Indians how is the climate here? mild climate is it related to any energy producing project? UNANSWERABLE
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Paleo-Indians [SEP] Classification
Paleo-Indians are generally classified by lithic reduction or lithic core "styles" and by regional adaptations. Lithic technology fluted spear points, like other spear points, are collectively called projectile points. The projectiles are constructed from chipped stones that have a long groove called a "flute". The spear points would typically be made by chipping a single flake from each side of the point. The point was then tied onto a spear of wood or bone. As the environment changed due to the ice age ending around 17–13Ka BP on short, and around 25–27Ka BP on the long, many animals migrated overland to take advantage of the new sources of food.