Archaeologists document the 100-kilometre long Sahtu Dene caribou fences in Canada’s  Northwest Territories. The task aims at marking a physical record of indigenous history in the area.

A 100-kilometre long wooden fence in the Sahtu region is being documented by archaeologists. The fence was erected by hunters to corral caribou, making it easier for them to hunt them in large numbers. The researchers believe the fence was used by hunters who sold meat to the Hudson’s Bay Company in the late 1800s. The researchers apply aerial drone photography to capture high-resolution photos of the structure. Dendrochronological analysis are also applied to create a dating system from the treeline going back 500 years.

(after CBC News & Tom Andrews)