page_title: Sepik
hierarchical_section_title: Sepik
caption_attribution_description: English: NASA World Wind image of the Sepik and Ramu
context_page_description: The Sepik River is the longest river on the island of New Guinea, and after the Fly and the Mamberamo the third largest by volume. The majority of the river flows through the Papua New Guinea provinces of Sandaun and East Sepik, with a small section flowing through the Indonesian province of Papua.
  The Sepik has a large catchment area, and landforms that include swamplands, tropical rainforests and mountains. Biologically, the river system is often said to be possibly the largest uncontaminated freshwater wetland system in the Asia-Pacific region. But, in fact, numerous fish and plant species have been introduced into the Sepik since the mid-20th century.
context_section_description: The Sepik River /ˈsɛpɪk/ is the longest river on the island of New Guinea, and after the Fly and the Mamberamo the third largest by volume. The majority of the river flows through the Papua New Guinea (PNG) provinces of Sandaun (formerly West Sepik) and East Sepik, with a small section flowing through the Indonesian province of Papua.
  The Sepik has a large catchment area, and landforms that include swamplands, tropical rainforests and mountains. Biologically, the river system is often said to be possibly the largest uncontaminated freshwater wetland system in the Asia-Pacific region.  But, in fact, numerous fish and plant species have been introduced into the Sepik since the mid-20th century.
caption: Sediment plumes at the mouth of the Sepik (right) and Ramu (left) rivers
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