Chalan Beel

Chalan Beel
Chalan Beel in Natore District
Location	Rajshahi Division
Coordinates	24°31′N 89°01′E / 24.52°N 89.01°E / 24.52; 89.01Coordinates: 24°31′N 89°01′E / 24.52°N 89.01°E / 24.52; 89.01
Primary inflows	Atrai River and 46 others
Basin countries	Bangladesh
Surface area	26 km2 (10 sq mi)
Average depth	2 m (6.6 ft)
Max. depth	4 m (13 ft)

Chalan Beel (Bengali: চলনবিল) is a wetland in Bangladesh. It is a large inland depression, marshy in character, with rich flora and fauna. Forty-seven rivers and other waterways flow into the Chalan Beel. As silt builds up in the beel, its size is being reduced.

Chalan Beel is an extensive lowland area in the lower Atrai basin, and spreads across Singra and Gurudaspur upazilas on Natore District, Chatmohar, Bhangura and Faridpur upazilas of Pabna District, and Ullahpara, Raiganj and Tarash upazilas of Sirajganj District. It consists of a series of beels connected to one another by various channels to form a continuous water body during the rainy season. Although the beel area expands into a vast water body with dense aquatic vegetation as long as the Jamuna remains flooded during the monsoon months, it dries out in the winter months, leaving only patches of water in the central parts of this zone.