13,000 Clovis-era tool cache unearthed in Colorado shows evidence of camel, horse butchering

More than 80 stone implements discovered together in Boulder city limits by landscapers

		IMAGE: Three stone artifacts from a 13,000-thousand-year-old Clovis-era cache unearthed recently in the city limits of Boulder, Colo. are shown by University of Colorado at Boulder anthropology Professor Douglas Bamforth and... Click here for more information.

A biochemical analysis of a rare Clovis-era stone tool cache recently unearthed in the city limits of Boulder, Colo., indicates some of the implements were used to butcher ice-age camels and horses that roamed North America until their extinction about 13,000 years ago, according to a University of Colorado at Boulder study.