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topic
Geology
6
Explorations and surveys
5
Pacific railroads
5
Discovery and exploration
4
Surveys
4
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name
United States. War Department. Office of P.R.R. Surveys
6
Blake, William P. (William Phipps), 1826-1910
5
Williamson, R. S. (Robert Stockton), 1824-1882
5
Ackerman Lithr
3
United States. Army. Corps of Topographical Engineers
3
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collection
Maps of North America
8
place
California
6
Nevada
2
Arizona
1
Ashland County
1
Ashland County (Wis.)
1
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genre
x
Geological cross-sections
Maps
8
Diagrams
2
publisher
War Dept., U.S. Pacific Rail Road Explorations & Surveys
6
California State Mining Bureau
1
Moore, Benjamin & Co
1
division
Map Division
8
type
x
still image
cartographic
8
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8 results found
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: Geological cross-sections
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Map of the Gogebic Iron Range…
Geological plan & section fro…
Geological section of the Coa…
Geological section along the …
Geological section of the Sie…
Geological section from the C…
Geological section of the Ber…
Map of the Forest Hill Divide…