topic

• Explorations and surveys1
• Mountain passes1
• Pacific railroads1

name

• Parke, John G1
• Siebert, Selmar1
• Smith, Isaac W. (Isaac William), 1825-18981
• United States. War Department. Office of P.R.R. Surveys1
• Williamson, R. S. (Robert Stockton), 1824-18821

collection

• Maps of North America1

place

• United States1

genre

• Diagrams1
• Maps1

publisher

division

• Map Division1

type

• cartographic1
• still image1