Before revision: The Yukon Ice Patches are a series of dozens of ice patches in the southern Yukon discovered in 1997, which have preserved hundreds of archaeological artifacts, with some more than 9,000 years old.
After revision: upright=1.4|Map of YukonThe Yukon Ice Patches are a series of dozens of ice patches in the southern Yukon discovered in 1997, which have preserved hundreds of archaeological artifacts, with some more than 9,000 years old.