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Lesson overview:What are the features of a drainage basin?

  • A drainage basin is an area of land drained by a river and its tributaries.
  • Drainage basins include features such as a source, tributaries, confluences, mouth, watershed.
  • The Mississippi drainage basin is the largest in N. America totalling 41% of the United States and is the 4th largest in the world.
  • A drainage basin is an area of land drained by a river and its tributaries.
  • Drainage basins include features such as a source, tributaries, confluences, mouth, watershed.
  • The Mississippi drainage basin is the largest in N. America totalling 41% of the United States and is the 4th largest in the world.

In this lesson we will be learning about the drainage basin of a river and some of their key features. We will look at aerial photographs and OS map extracts to try and spot the main features.