Idaho Arrowheads and Projectile Points

Home / Regional Arrowhead Guides / Idaho

This catalog-backed guide explores projectile point references that explicitly mention Idaho. It is an identification starting point, not a record of private finds or archaeological site locations.

Arrowhead Types Referenced for Idaho

  • Bitterroot Washington — Late Archaic Pacific Northwest , 1,900-4,100 BP
  • Cascade Ovoid — Old Cordilleran Cascade Phase , 9,000-5,500 BCE
  • Coeur d'Alene Point — Coeur d'Alene , 1,500-150 years ago
  • Contracting Stem Dart Idaho — Middle Archaic Great Basin , 2,210 cal BC - 710 cal BC
  • Cooper's Ferry Stemmed — Early stemmed tradition , 16,000 years ago
  • Cottonwood Triangular Idaho — Late Woodland , Late Woodland period
  • Desert Side-Notched — Late Holocene Great Basin , 1,500 BCE-1,500 CE
  • Desert Side-notched Idaho — Late Woodland , 500-1,000 CE
  • Duncan Hanna McKean — McKean Complex , 3,700-2,500 BP (Duncan predominant 2000-1500 BCE, Hanna 1500-1000 BCE)
  • Elko Corner-Notched — Elko Series , 4,500-1,300 BCE
  • Elko Eared — Elko Series , 4,500-1,300 BCE
  • Elko Eared Utah — Middle-Late Archaic , 3,500-1,500 BP

Indigenous History and Cultural Periods

  • Paleo-Indian (12,000-8,000 BCE): Wilson Butte Cave evidence, Western Stemmed points
  • Archaic (8,000-200 BCE): Northern and Western traditions merge
  • Late Prehistoric (200-1,850 CE): Shoshone and Nez Perce traditions

How to Identify a Idaho Arrowhead

Compare the base, stem, notches, flaking, material, and overall outline with the linked type guides. Similar point styles can span neighboring regions and long periods, so provenance and expert review still matter.

Review artifact collection laws before collecting or disturbing any site.

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