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Delaware ... 7 1/2- minute series [cartographic material] / United States Department of the Interior, Geological Survey

Corporate Author
Geological Survey (U.S.)
Additional Titles
7 1/2-minute series, Delaware, 7.5-minute series, Delaware, Delaware ... 7.5- minute series, Delaware ... seven and a half minute series, Variant title: Delaware [name of county], [name of local area] 7 1/2-minute series, and Alternate title: Delaware 1:31,680
Published
[Washington, D.C.] : U.S. Geological Survey, [between 1940 and 1949?]
Edition
Various ed.
Physical Description
maps : color ; 46 x 34 cm or smaller, on sheets 51 x 42 cm

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Subject(s)
Genre(s)
Cartographic Mathematical Data
Scale 1:31,680 ; Polyconic projection (W 75°48ʹ--W 75°00ʹ/N 39°51ʹ--N 38°27ʹ).
Note
Relief shown by contours and spot heights.
Some sheets "Mapped by the Geological Survey."
"Surveyed in [date or dates]."
Quadrangles along state boundaries overlap adjacent states.
Text titled "The topographic maps of the United States" with two ancillary maps showing landform and its accompanying contour map, and legend on verso.
View MARC record | catkey: 5804902