Monday, August 31, 2026 Search My Trip EnglishChinese
World news · travel · culture
Taiwan The Taiwan Times
Taiwan's window to the world

Cadagua

The 883rd longest river in the world

km

The Cadagua or Kadagua River drains the Biscayan area of Encartaciones (Basque: Enkarterriak), from the Castilian valley of Mena to Barakaldo and Bilbao, where it forms the border between these municipalities and ends at the Estuary of Bilbao. Another important town that this river crosses is Balmaseda. The river takes its name from the small village where is located its first spring. Cadagua village is located in Valle de Mena (Burgos, Spain) surrounded by the beautiful landscape of "La Peña" mountains. Four small hydropower plants produce electricity thanks to the river Cadagua. Until the last decades of the 20th century, this water power was also used by several mills that can be seen nowadays in the river basin. Cadagua is a company that took its name from this river. This company designs, plans and builds water treatment plants in order to improve the environment. Its main tributaries are the Ordunte on the left bank and the Herrerías on the right bank.

Flows through: Spain.

River data from Wikidata (CC0); lengths normalised to a common unit.

Other major rivers

  1. Amazon6,992 km
  2. Nile6,650 km
  3. Yangtze River6,300 km
  4. Bian River5,806 km
  5. Yellow River5,464 km
  6. Paraná River4,880 km
  7. River Congo4,700 km
  8. Mekong River4,350 km