Long valley is a fresh water wetland formed by wet agricultural farming and bloodworm ponds . it is bounded by river beas and sutlej in the north and villages of yin kong and tsung pak long in the south . the marshland supports a diversity of bird species ?原位于双鱼河及石上河以南，燕岗及松柏?以北，是一片由水耕农田及红虫塘形成的湿地，区内有不同品种的雀鸟栖息。
