This pictures shows all of the 11 bifaces that were
found in the McKinnis Clovis cache. They are all made
of white Burlington chert and range in size from 5 5/8
inches (14.3 cm) long for the longest and 3 3/4 inches
(9.5 cm) long for the smallest. The widest biface
measures 3 1/16 inches (7.7 cm) wide. The widest
percussion flake measures 2 1/2 inches (6.3 cm) wide.