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Big Bend National Park
Spring flowers bloom in abundance on sand dunes along the floodplain of the Rio Grande River. High cliffs of limestone form the mouth of Boquillas Canyon are in the distance.
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U.S. Department of the Interior - U.S. Geological Survey - Geology Discipline
The URL of this page is: http://3dparks.wr.usgs.gov/bigbend/html/bb218.htm
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Last modified: 4/1/2005

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