QUEBEC, CANADA—Artifacts estimated to be between 4,000 and 7,000 years old have been found on Waskaganish territory in northern Quebec, in an area that the local Cree know as a traditional fishing site. The rough-looking stone blades and arrowheads had been ground into shape. Further excavations may reveal if the land was used as a campsite. “It’s pretty exciting, because we don’t have a lot of sites in Quebec that are that old, if it’s as much as 7,000 years,” said James Chism of the Waskaganish Cultural Institute.