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Cody Knife
Archaic Period (likely)
Yellowstone’s Obsidian Cliff Plateau is home to high-quality deposits spanning five square miles. The sharpness of volcanic glass from this source makes it a highly valuable resource for carving lithic (stone) tools such as this knife. Analysis has revealed that this knife was used to butcher hare and deer.
Tribes in Montana, Wyoming, and Idaho traveled great distances to access obsidian in Yellowstone, and it was traded across North America. Obsidian quarried from the Obsidian Cliff Plateau has been identified in objects found in the Ohio River Valley dating to 1,850 years ago.
Obsidian. L 5.5, W 2.3, H 0.6 cm
Yellowstone National Park, YELL 66605
Archaic Period (likely)
Yellowstone’s Obsidian Cliff Plateau is home to high-quality deposits spanning five square miles. The sharpness of volcanic glass from this source makes it a highly valuable resource for carving lithic (stone) tools such as this knife. Analysis has revealed that this knife was used to butcher hare and deer.
Tribes in Montana, Wyoming, and Idaho traveled great distances to access obsidian in Yellowstone, and it was traded across North America. Obsidian quarried from the Obsidian Cliff Plateau has been identified in objects found in the Ohio River Valley dating to 1,850 years ago.
Obsidian. L 5.5, W 2.3, H 0.6 cm
Yellowstone National Park, YELL 66605