http://wcco.com/local/local_story_012071945.html
Walker, Minn. Archaeologists have discovered stone tools atop a hill in this northern Minnesota town that may be 13,000 to 14,000 years old, according to a published report.
Mather said the site appears to be "much older" than the Clovis era of finely made spear points that defines the paleo-Indian period.
The find is "startling enough that appropriate response from every archaeologist and glacial geologist is skepticism." But, he added, a half-dozen archaeologists, soil scientists and others who have examined the site all say the artifacts are genuine.