topic

• Explorations and surveys2
• Geology2
• Pacific railroads2
• Travel2
• Charts, diagrams, etc1

name

• Blake, William P. (William Phipps), 1826-19102
• Pope, John, 1822-18922
• United States. War Department. Office of P.R.R. Surveys2
• Wagner & M'Guigan2

collection

• Maps of North America2

place

genre

• Maps2
• Geological maps1

publisher

• War Department1

division

• Map Division2

type

• cartographic2