Duncan Montana – Arrowhead & Projectile Point Identification
- Culture: Early-Middle Archaic McKean Complex
- Time period: 8,000-3,500 BP
- Region: Montana Plains
- Material: Local cherts, quartzite
Small medium stemmed lanceolate points excurvate blades, weak absent shoulders, commonly found Saskatchewan, Alberta, Montana, Dakotas (28-59mm total length). Hanna Points feature barbed shoulders expanding stems, considered part continuum Duncan points. McKean Points part broader Plains Archaic tradition. Oxbow Points dating 4,500-4,100 BP, named Oxbow, Saskatchewan, distinctive deep side notches creating pronounced ears deep concave bases.
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