topic

• Telegraph lines1

name

• Bien, Julius, 1826-19091
• Geographical and Geological Survey of the Rocky Mountain Region (U.S.)1
• Mahon, Charles1
• Powell, John Wesley, 1834-19021

collection

• Maps of North America1

place

genre

• Maps1

publisher

• The Survey1

division

• Map Division1

type

• cartographic1