Cottonwood Triangular Idaho – Arrowhead & Projectile Point Identification

Cottonwood Triangular Idaho projectile point
Culture: Late Woodland
Time period: Late Woodland period
Region: Idaho Western
Material: Local varieties, obsidian

Simple triangular forms. Rosegate Series various small medium points. Size progression: Large Early/Middle Archaic → Medium Late Archaic → Small Woodland. Hafting changes: Stemmed → Corner-notched → Side-notched → Triangular. Technology shift: Atlatl dart points → Bow arrow points around 1,000 CE. Idaho State University Digital Atlas online identification guides.

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