Chopper from the Colby mammoth kill site.

CLOVIS CHOPPER
COLBY SITE
FOUND IN BONE PILE NUMBER 2
NORTH CENTRAL WYOMING
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COPYRIGHT SEPTEMBER 30, 2011 PETER A. BOSTROM

This picture shows the largest of the two choppers found on the Colby site and the side with the outer cortex.

Large chopper from the Colby mammoth kill site.