Unchinked log cabins forced blanket-buried sleeping in deep frost

Evidence

The storm was very severe, and the landmarks being blotted out, I lost my way in the snow, and when I reached the cabin after dark I found it still empty, for the two hunters, on returning, finding that I had gone out, had gone in search of me. The snow cleared off late, and intense frost set in. My room is nearly the open air, being built of unchinked logs, and, as in the open air, one requires to sleep with the head buried in blankets, or the eyelids and breath freeze. — Isabella L. Bird, A Lady’s Life in the Rocky Mountains, 480