Richard Proenneke was an amateur naturalist who lived alone for nearly thirty years in the mountains of Alaska in a log cabin which he built with his own hands near the shore of Twin Lakes. Proenneke hunted, fished, raised and gathered his own food, and also had supplies flown in occasionally. He documented his activities in journals and on film, and also recorded valuable meteorological and natural data. The journals and film were later used by others to write books and produce documentaries about his time in the wilderness.
He lived alone but he wasn't fully separated from civilization. He depended on others for cameras, films, rifles, ammunition, and medicine. Still, it was a stunning and remarkable existence.