topic

• Iron1
• Outcrops (Geology)1

name

• Ashburner, Charles A. (Charles Albert), 1854-18891
• Bien, Julius, 1826-19091
• Geological Survey of Pennsylvania1
• Hart, Lane S1
• More Less

collection

• Maps of North America1

place

• Huntingdon County1
• Huntingdon County (Pa.)1
• Orbisonia Region1
• Orbisonia Region (Pa.)1
• Pennsylvania1

genre

• Geological maps1
• Maps1
• Topographic maps1

publisher

• Geological Survey of Pennsylvania1

division

type

• cartographic1