Tucked in a remote corner of the Himalayas in India, is a frozen lake, Roopkund, at 16000 ft. In 1942 the accidental discovery of hundreds of skeletons here generated a controversy.

Skeleton Lake unravels the mystery behind the hundreds of skeletons strewn around the Roopkund Lake at a height of over 16,000 feet in the Garhwal Himalayas. The Roopkund riddle started in 1942, when a forest ranger accidentally unearthed a mass grave in Roopkund Lake. The mystery of Roopkund has intrigued sociologists, historians and anthropologists as well as local people for years. It has become the stuff of myth and legend. Fact and fiction have blended into religious folklore and been carried down the ages. With hundreds of skeletons strewn on the slopes of the Himalayas this colossal tragedy has shaken people worldwide.

The cause of this tragedy remains a mystery till now. Eventually, the riddle has been cracked. It started out as a regular excavation where the team retrievs several hundreds of bones and artifacts strewn on the slopes.

However, the most remarkable find came a bit later when the team discovers a body. It proves to be a rich source of DNA material. As the test results from different laboratories around the world start coming in, the various pieces of the jigsaw fall  into place.

Skeleton Lake reveals the secret behind the lake’s mass grave in Uttaranchal, based on the latest anthropological evidence.

Skeleton Lake is a part of the National Geographic series - Forensic Investigation Report (F.I.R.) .