BOULDER, Colo. (CBS4)– A new exhibit at the University of Colorado Museum will feature some ancient stone tools from the last ice age.

More than 80 tools were found inside the Boulder city limits in 2008. Those tools date back to 13,000 years ago, the end of the last ice age.

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Two different stone knives were found with protein from extinct North American animals.

One of the tools found in Boulder (credit: CBS)

One of the tools found in Boulder (credit: CBS)

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The man who made the discovery during the digging of a fish pond, contacted a CU Boulder archaeology professor who has been studying the tools ever since.

“I was speechless. I was completely speechless when I saw it. There’s nothing else like this in Boulder County at all and I knew right away they were definitely artifacts and I knew right away that they were not from anywhere near here,” said Archaeology Professor Douglas Bamforth.

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The exhibit “Unearthed: Ancient Life in the Boulder Valley” is expected to be open for the next year.