United States Geological Survey YearbookThe Survey, 1985 - Geology |
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Page 87
... RIVER ESTUARY STUDY The Potomac River Estuary Study , which began in October 1977 , was one of seven Geological Survey river - quality assessments and the only one to concen- trate on estuarine ... tidal Potomac River and Estuary . 87.
... RIVER ESTUARY STUDY The Potomac River Estuary Study , which began in October 1977 , was one of seven Geological Survey river - quality assessments and the only one to concen- trate on estuarine ... tidal Potomac River and Estuary . 87.
Page 88
... tidal Potomac River and Estuary . ( Modified from fig . 4 , U.S. Geological Survey Yearbook , Fiscal Year 1982 , p . 75. ) 39 ° 77 ° 30 ' 38 ° 30 ' 38 ° Chain Bridge Roosevelt Island- National Airport Wilson Bridge Tidal River Quantico ...
... tidal Potomac River and Estuary . ( Modified from fig . 4 , U.S. Geological Survey Yearbook , Fiscal Year 1982 , p . 75. ) 39 ° 77 ° 30 ' 38 ° 30 ' 38 ° Chain Bridge Roosevelt Island- National Airport Wilson Bridge Tidal River Quantico ...
Page 91
... tidal Potomac River from the U.S. Geological Survey Research Vessel Rockfish . The Wilson Bridge is in the background . ( Photograph by Daniel C. Hahl , Water Resources Division , U.S. Geological Survey . ) posited , and stored by ...
... tidal Potomac River from the U.S. Geological Survey Research Vessel Rockfish . The Wilson Bridge is in the background . ( Photograph by Daniel C. Hahl , Water Resources Division , U.S. Geological Survey . ) posited , and stored by ...
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