Christopher Thomas Knight

Christopher Thomas Knight (born December 7, 1965), also known as the North Pond Hermit, is an American extreme survival camper and convicted burglar who is believed to have lived with little to no human contact for 27 years, between 1986 and 2013, in the North Pond area of Maine's Belgrade Lakes. During his seclusion, Knight lived within one mile (two kilometers) of summer cabins in a crude camp he built in a well-drained woodland obscured within a cluster of glacial erratic boulders.

Source: Wikipedia — Christopher Thomas Knight (CC BY-SA 4.0)