The amazing story of a family living deep in Siberia without contact with the world for 40 years.

It was a clearing, 6,000 feet up a mountainside, wedged between the pine and larch and scored with what looked like long, dark furrows. The baffled helicopter crew made several passes before reluctantly concluding that this was evidence of human habitation—a garden that, from the size and shape of the clearing, must have been there for a long time.

It was an astounding discovery. The mountain was more than 150 miles from the nearest settlement, in a spot that had never been explored. The Soviet authorities had no records of anyone living in the district.

— For 40 Years, This Russian Family Was Cut Off From All Human Contact, Unaware of World War II
by Smithsonian