name

• Douglas, Edward Morehouse, 1855-19321
• Gannett, Henry, 1846-19141
• Geological Survey (U.S.)1
• Northern Transcontinental Survey1
• Thompson, A. H. (Almon Harris), 1839-19061
• More Less

collection

• Maps of North America1

place

• Deer Lodge County (Mont.)1
• Helena Region (Mont.)1
• Jefferson County (Mont.)1
• Lewis and Clark County (Mont.)1

genre

• Maps1

publisher

• U.S. Geological Survey1

division

type

• cartographic1