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Plains Side-Notch   600-200 B.P.

The Plains Side-Notch type is characterized by a triangular well-defined outline with sharp angles at the base and notches.  Flaking is well-executed and always bifacial.  Notches are small, deep, and narrow, an acute U in shape, placed fairly high on the blade.  The bases are as wide or wider than the proximal end of the blade.  The corners of the base and notches are square.  Bases are straight or concave. The length of Plains Side-Notch projectile points range from 33.5 to 10 mm, width ranges from 18 to 9 mm, thickness ranges from 7 to 2 mm.  Kehoe
Plains Side-Notch pointHell Gap PointHell Gap point