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Book 19, Question 1

Where Does a River Begin?

Most rivers begin as tiny trickles, so small you could step right across them! Rain and melting snow soak into the ground, then seep back out at a spring or run downhill. The place where a river starts is called its source.

More fun facts

Sources: BBC, U.S. Geological Survey

Questions kids ask

What is the start of a river called?

Its source. Most sources are in mountains or other high ground, but some are lakes, marshes, glaciers or springs.