topic

• Explorations and surveys25
• Discovery and exploration11
• Geology11
• Railroads11
• More Less

name

• United States. War Department. Office of P.R.R. Surveys14
• Blake, William P. (William Phipps), 1826-19109
• Williamson, R. S. (Robert Stockton), 1824-18829
• Davis, Jefferson, 1808-18897
• United States. War Department7
• More Less

collection

• Maps of North America26

place

• California11
• West (U.S.)8
• United States, West4
• Nevada3
• United States3
• More Less

genre

• Geological cross-sections5
• Diagrams2
• Charts1
• Geological maps1
• More Less

publisher

• War Department9
• War Dept., U.S. Pacific Rail Road Explorations & Surveys7
• Corps of Engineers, War Department2
• Wagner & McGuigan, Lith2
• D. Chillas Lith1
• More Less

division

type

• cartographic26
• still image9