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Institution
Collection
Format
Subject
1
Canals Design and construction
1
Chesapeake and Ohio Canal (Md. and Washington, D.C.) History
1
Chesapeake and Ohio Canal National Historical Park History
1
Coastal plains
1
Delaware Altitudes
1
Environmental conditions
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1
Environmental monitoring
1
Geology
1
Groundwater
1
Hydrological surveys
1
Maryland Altitudes
1
Municipal water supply Planning
1
National parks and reserves
1
Regional planning
1
Stream measurements Cost effectiveness
1
Stream-gaging stations Cost effectiveness
1
Towpaths History
1
Virginia Altitudes
1
Washington (D.C.) Altitudes
1
Water quality Measurement
1
Water resources development
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Author
5
Geological Survey (U.S.),
1
Bell, Joseph M. (Geologist),
1
Carpenter, David H.,
1
Chanat, Jeffrey G.,
1
Chesapeake and Ohio Canal National Historical Park (Agency : U.S.),
1
Fleck, William B.,
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1
Gillen, D. F.
1
James, R. W.
1
Junior Ranger Program (United States. National Park Service)
1
Luzader, John F.,
1
Marshall, R. B. 1867-1949,
1
Miller, Cherie V.,
1
Montgomery County (Md.)
1
Prince George's County (Md.)
1
Rickert, David A., 1940-
1
Schneider, William Joseph, 1921-
1
Spieker, Andrew Maute, 1932-
1
Thornberry, Trista L.,
1
United States. National Park Service
1
United States. National Park Service. Geologic Resources Division,
1
Vroblesky, Don A.,
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