Students at this summer's archaeological field school near the Gerstle River spent five weeks sifting through thousands of artifacts dating back to some of the continent's first inhabitants.
Assistant Professor Ben Potter, who's been involved with the site since the mid-90s, said their discoveries are globally significant.
"The site has a number of qualities that are extremely rare in the subarctic, whether in North America or Asia," Potter said. "First of all, we have incredibly good preservation of organic materials that typically deteriorate in acidic soils of boreal forest settings. Another reason it's important is that it's extremely well stratified. The soil lays down like a layer cake, which helps us identify specific occupations and the artifacts that are associated with each other."
Potter also said that the site is unusual in the number of artifacts unearthed.
"To this point I think we have around 10,000 to 12,000 fragments of stone tools and some of the tools themselves," he said. "We've probably got about 500 tools that we've found so far in our excavations. For all of these reasons, it's an extremely significant site."
For their work at the site, which consisted of digging eight hours a day, six days a week for five weeks, students earned six academic credits.
Thomas Allen, an undergraduate anthropology major from Fairbanks, was particularly impressed with what he was helping to find at the Gerstle River site.
"Stones and bones are cool, but what they can actually tell you about what people were doing here 10,000 years ago, that's really why I'm out here."