Wind gap

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Stream capture by headward erosion , leaving a wind gap

A wind gap (or air gap ) [1] is a gap through which a waterway once flowed that is now dry as a result of stream capture . [2] A water gap is a similar feature, but one in which a waterway still flows. Water gaps and wind gaps often provide routes which, due to their gently inclined profile, are suitable for trails , roads , and railroads through mountainous terrain.

Examples of wind gaps in the Blue Ridge Mountains of Virginia include Swift Run Gap , Rockfish Gap , and Buford's Gap . The last was the original crossing of the Blue Ridge Mountains near Bedford for the Virginia and Tennessee Railroad , later the Norfolk and Western Railway , a precursor of today's Norfolk Southern Railway system. Another wind gap with substantial importance in U.S. history is the Cumberland Gap near the junction of Kentucky, Virginia, and Tennessee.

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References [ edit ]

  1. ^ Neuendorf, Klaus K. E.; Institute, American Geological (2005). Glossary of Geology . Springer Science & Business Media. ISBN   9780922152766 .
  2. ^ Digital Atlas of Idaho - Glossary of Natural History Terms