Red River Delta Biosphere Reserve

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Red River Delta Biosphere Reserve
Red River Delta
Location	Red River Delta, Vietnam
Coordinates	20°28′12″N 107°0′0″E / 20.47000°N 107.00000°E / 20.47000; 107.00000
Area	137,261 hectares (529.97 sq mi)
Established	2004

The Red River Delta Biosphere Reserve (established 2004) is a UNESCO biosphere reserve in the coastal region of northern Vietnam. Mangroves and intertidal habitats of the Red River Delta form wetlands of high biodiversity especially in the Xuan Thuy and Tien Hai districts. These wetlands are of global importance as migratory sites for several bird species.^[1]

The reserve's surface area (terrestrial and marine) is 137,261 hectares (529.97 sq mi). The core area is 14,842 hectares (57.31 sq mi), of which 6,278 hectares (24.24 sq mi) is terrestrial and 8,564 hectares (33.07 sq mi) is marine, surrounded by buffer zone(s) of 36,951 hectares (142.67 sq mi) (18,457 hectares (71.26 sq mi) terrestrial, 18,494 hectares (71.41 sq mi) marine) and transition area(s) of 85,468 hectares (329.99 sq mi) (35,447 hectares (136.86 sq mi) terrestrial, 50,021 hectares (193.13 sq mi) marine).^[1]