page_title: Cát Bà National Park
section_title: Geography
hierarchical_section_title: Cát Bà National Park / Geography
caption_attribution_description: English: Steel tower in Cat Ba National Park.
context_page_description: Cát Bà National Park is a World Heritage Site designated as a biosphere reserve in northern Vietnam. The park is part of Cát Bà Island in Hạ Long Bay and is administered by the city of Haiphong. The park is located approximately 30 kilometres east of Hai Phong, covering about 263 square kilometres and comprising 173 square kilometres of land and 90 square kilometres of inshore water.
  The Cát Bà langur, also known as the white-headed langur is resident within the park and is classified by the International Union for Conservation of Nature as a critically endangered primate; one of the rarest in the world.
context_section_description: Cát Bà National Park is situated off the north-east shore of Viet-nam and covers most of Cát Bà island; the park headquarters are at Trung Trang. The island is mainly limestone with alternating narrow valleys running north-east to south-west. There are many rugged hills with elevation to 500 metres (1,600 ft); most are in the range 50–200 metres (160–660 ft).
  The geographic coordinates are:
  20 ° 43'50 "-20 ° 51'29" north latitude.
  106 ° 58'20 "-107 ° 10'50" east.
  There are five main soil groups:
  The limestone soil: It is weathered soils or brown reddish-brown limestone and sandstone, soil> 50 centimetres (20 in), pH = 6.5 to 7. Distributed under the forest canopy, scattered in the garden.
  The hills are forested with brown soil or weathered limestone, less acidic or near neutral. In this soil white or gray yellow brown clay shale development on the hills, with thin and rocky soil.
  The valleys have soil on limestone, concentrated in the valleys, the natural forest cover.
  The Thing Valley land flooding, mainly developed by the accretion process, the rainy season usually submerged, surface soil medium or thin.
  The accretion of land submerged by product deposition in the estuary, the mangrove area development on the Cai Vieng, Phu Long.
  The area of the park is 16,196.8 hectares (40,023 acres), of which 10,931.7 hectares (27,013 acres) is forest and 5,265.1 hectares (13,010 acres) of sea. Forest includes primary, secondary and mangrove.
caption: Tower in Cát Bà National Park
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