Spread over an area of 400 sq. kms near the Nepal border, the little known, Katarniaghat Sanctuary was established in 1976. It is located in the Terai area on Indo-Nepal border of Bahraich district. Tiger, leopard, swamp deer, blackbuck, chital, barking deer, sambar, nilgai, sloth bear and wild boar are some of the inhabitants of the sanctuary.