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Historical geology sheet, Maryland--District of Columbia--Virginia, Washington quadrangle /
Summary
Relief shown by contours.
Geology "Surveyed in 1893-1899."
Topography "Surveyed in 1895-86 and 95-97."
Includes notes and "Sections" diagram.
LC copy halved and mounted on cloth backing.
Available also through the Library of Congress Web site as a raster image.
DCP
Tags
Date
1890 - 1900
Contributors
Geological Survey (U.S.)
Darton, Nelson Horatio, 1865-1948.
Williams, George Huntington, 1856-1894.
Keith, Arthur.
Wilson, Herbert M. (Herbert Michael), 1860-1920.
U.S. Coast and Geodetic Survey.
Source
Library of Congress
Copyright info
Public Domain
