Cascade Washington – Arrowhead & Projectile Point Identification

Culture: Early-Middle Archaic Pacific Northwest

Time period: 8,500-5,250 BP

Region: Washington Pacific Northwest

Material: Chert, quartzite, argillite, obsidian

Early Archaic: 8,500-5,250 BP. Middle Archaic: Various side-notched forms. Common types: Bitterroot, Pelican Lake, Oxbow, Hanna, Duncan, McKean. Woodland/Late Prehistoric (1,900-150 BP): Transition smaller arrow points. Triangular forms become dominant. Types: Prairie Side Notched, Avonlea, Tri-notched, Plains Side Notched. Columbia River basin terraces (rich archaeological zones). Elevated hunting camps near water sources.

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