Indiana Geology Glossary - Search Results

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drainage basin: An area bounded by a drainage divide that gathers water originating as precipitation and contributes it to a particular stream channel or system of channels, or to a lake, reservoir, or other body of water. A drainage basin can be small, such as one that contributes water to a small pond, or large, such as the one that contributes water to the Wabash River.

Modified from Glossary of Geology, 4th Edition, 1997, American Geological Institute.; See: drainage divide