Archaeologists discovered the Upward Sun River site, located east of Fairbanks, Alaska, in 2010. Subsequent excavations turned up evidence of human dwellings and artifacts indicating that people camped at the site during the summer between 13,200 and 8,000 years ago. In addition to some of the earliest known salmon fishing in Alaska, the ancient camp also saw tragedy: In 2011, a team of archaeologists from the University of Alaska and elsewhere found the cremated bones of a 3-year-old child atop a hearth. Then, in 2013, the team discovered a burial pit underneath the hearth containing the skeletons of two infants.