In 1976, Chail Wildlife Sanctuary was identified and it was declared as a protected area under government consideration.
Large mammals include rhesus macaque, leopards, Indian muntjac and crested porcupine.
European red deer were also introduced half a century ago by the former Maharaja of Patiala but none of them were sighted in 1988 as per the survey conducted.
It houses rhesus macaque, leopard, Indian muntjac, goral, porcupine, wild boar, langur and Himalayan black bear.
The Chail Wildlife Sanctuary is connected with major routes of Shimla and Chandigarh.