Canada's relationship with Mexico

As I understand it, the Inuit of the northern regions also ate roots, greens,and berries. Apparently the stomach contents of the animals they harvested were also consumed, having been already partially processed by the animal. I imagine these brief variations in diet would be a very welcome change!
At the same time, the first peoples had extensive trade networks. This is why camas was grown in such large quantities, so it could be traded to those without a regular supply of it.
Trade was important to be able to get resources unavailable in one's own area. There is no source of obsidian here on Vancouver Island, but we find a lot of it. Some we have had tested came from Idaho, as well as Mt Hood & the Newbury Volcano in Oregon (about 400 miles away).