No one knows exactly who left these ancient hunting instruments, but the bow and arrows have a design that's strikingly similar to those found thousands of miles away in other frigid landscapes, such as the Yukon, Callanan said.
"The people in Norway, they didn't have any contact with people in the Yukon, but they have the same type of adaptation," Callanan said. "Across different cultures, people have acted in the same way."
Finding such well-preserved tools is rare, said E. James Dixon, an archaeologist and director of the Maxwell Museum of Anthropology at the University of New Mexico, who was not involved in the study.
"It's one of the rare glimpses that we have into this Neolithic-period archery technology," Dixon said.
However, while the find itself is stunning, the climate change that caused such ancient snow to melt is bad for archaeology, he said.
Artifacts locked in ice can be preserved for thousands of years.
"As soon as ice melts and it comes out, it's subject to decomposition and we lose it," Dixon told LiveScience. "For every artifact we find, there are probably hundreds, maybe thousands, that are lost and just destroyed forever."
The bow and arrows are described in the September issue of the journal Antiquity.
More From LiveScience:
Copyright 2013 LiveScience, a TechMediaNetwork company. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.