topic

• Explorations and surveys14
• Geology14
• Pacific railroads14
• Discovery and exploration6
• Surveys6
• More Less

name

• Blake, William P. (William Phipps), 1826-191012
• Williamson, R. S. (Robert Stockton), 1824-188210
• Davis, Jefferson, 1808-18895
• Parke, John G5
• More Less

collection

• Maps of North America21

place

• California14
• California, Northern2
• Nevada2
• Oregon2
• Sierra Nevada (Calif. and Nev.)2
• More Less

genre

• Geological cross-sections7
• Geological maps3
• Diagrams2

publisher

• War Dept., U.S. Pacific Rail Road Explorations & Surveys9
• War Department5
• Wagner & McGuigan, Lith2
• Lith. by A. Hoen & Co1
• Office of P.R.R. Exp. & Surveys1
• More Less

division

type

• cartographic21
• still image10