U.S. Geological Survey: Science for a Changing World - USGS visual identifier and link to main Web site at http://www.usgs.gov/

Photographs showing sample sites just above Great Falls. For a more detailed explanation, contact Paul Bierman at pbierman@zoo.uvm.edu.
 
Figure 18. Sample sites just above Great Falls. A, Sample site GF-37 adjacent to the upstream Great Falls viewing platform on the Virginia side of the river. B, Sample site GF-46 upstream of the walking trail on Olmsted Island. C, Sample site GF-65, highest elevation sample on the vertical transect downstream of the viewing platform on the Maryland side of the river just below Great Falls.

U.S. Department of the Interior, U.S. Geological Survey
URL: https:// pubs.usgs.gov /circ/2004/1264/html/trip6/fig18.html
For more information, contact Paul Bierman
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