Pit houses were common for winter village camps all over North America. Open fires and a very ingenious rock-filled tunnel for fire air.
Wanuskewin was occupied for some 6,000 years. Some had cold air well entrances and elevated sleeping benches. I would like to experience about 2 weeks of winter in one
Summer camps and meetings meant travel with much lighter weight/portable coverings.
Here in the Pacific Northwest, most winter camps were selected for environmental shelter from the landscape.
Summer and fall salmon and trout camps. . . well, the fish don't come to me!
On Haida Gwaii, the Haida people build stone weirs for salmon fishing, the water is about knee deep, perfect for spearing. They still cultivate mussels, oysters and clams.
There's good evidence that Pacific sea levels rose some 200' with the end of the last ice age. Just a year ago(?), Parks Canada had a couple of divers swim out and down the projected
courses of several salmon bearing rivers on Haida Gwaii. They found fishing weir patterns of rocks, just as deep as they could manage!