and environmental importance besides being the only major storm water storage basin for the Guwahati city. The beel is endowed with rich floral and faunal diversity. In addition to huge congregation of residential water birds, the Deepor ecosystem harbours large number of migratory waterfowl each year. Deepor Beel has been designated as a Ramsar site in November 2002. References Birding opportunities at Deepor Beel Lakes Depressions (geology) Geography of India Ponds Wetlands of Bangladesh