topic

• Discovery and exploration6
• Explorations and surveys6
• Geology6
• Pacific railroads6
• More Less

name

• United States. War Department. Office of P.R.R. Surveys6
• Williamson, R. S. (Robert Stockton), 1824-18824
• United States. Army. Corps of Topographical Engineers3
• Ackerman Lithr2
• More Less

collection

• Maps of North America6

place

• California6
• Nevada2
• Riverside County1
• Riverside County (Calif.)1
• San Bernardino County1
• More Less

genre

• Maps6
• Geological cross-sections4

publisher

division

• Map Division6

type

• cartographic6
• still image6