Reach (geography)

A reach is a general term for a length of a stream or river, usually suggesting a level, uninterrupted stretch.[1] The beginning and ending points may be selected for geographic, historical or other reasons - and may be based on landmarks such as gauging stations, river miles, natural features, and topography.[2][3]

Example: Hanford Reach National Monument, Washington State, USA. The last significant free-running (undammed) section of the Columbia River in the US

A reach may also be an expanse, or widening, of a stream or river channel. This commonly occurs after the river or stream is dammed. A reach is similar to an arm. The term "reach" can also refer to:

As of 2015, the US Board on Geographic Names records 334 place names in the US with the characterization of a named "reach".[4]

See also

References

  1. Macfarlane, Robert, "Landmarks", Hamish Hamilton Press, 2015
  2. Hydrologic Definitions, Science in Your Watershed, USGS
  3. Glossary: stream-related terms, StreamNet
  4. USGS Survey GNIS Database
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