If the iron was of pre-contact trade iron, consistent with the materials circulating in Indigenous networks before regular European contact, that would be consistent with the lower end of the age range.

If the iron showed characteristics associated with European-manufactured goods, that would push the date toward the later end of the range, during the period when European trade goods were beginning to enter the region through the complex Indigenous trading networks that connected the coast to the interior.

The biological material preserved in the ice went beyond the clothing and tools.

Hair was recovered — a material that can yield both DNA and isotopic evidence about diet and geography.