Proenneke spent May, June, and July of 1968 building his cabin by hand and with nothing but hand tools. The cabin was complete with windows, one of which was designed and built of mylar by Proenneke himself to face the lake and not fog up. He also built furniture including chairs, tables, a desk, and a bunk; a log cache built up on poles to store food and goods that needed to be kept away from wildlife; a stone and mortar fireplace; and many decorations such as a plaster of paris wolf track and moose and caribou antler decorations.
Proenneke's friend and bush pilot, Babe Alsworth, returned occasionally to bring food and orders that Proenneke placed through him to Sears. While Proenneke lived largely off the land, he enjoyed things like red beans, bacon, and seasonings, all of which he proclaimed to be life's real luxuries.
Several times during his life at Twin Lakes, Proenneke was attacked by brown bears. He also became quite adept at taming animals, befriending a squirrel, a weasel, many birds, and (almost) a wolverine.
Proenneke remained at Twin Lakes for the next 16 months, when he left to go home for a spell to visit relatives and secure more supplies. He returned to the lakes in the following spring, and remained there for most of the next 30 years, coming to the lower 48 only occasionally to be with his family, for whom he cared a great deal.
from wikipedia.org