Until about 1920, the Gwitchin used caribou fences to harvest caribou. These wooden structures consisted of drift fences that spanned kilometers and guided caribou to a solidly built corral, which funneled caribou into a constricted area where they could be easily killed.

Evidence of this efficient harvesting method has been found across the north, with a total of forty-six known sites in Alaska, the Northwest Territories and the Yukon. Seven of these fences are located within Vuntut National Park, representing important archaeological and cultural sites.