Digital Collections Subject Browser
subject : Iron ores--United States--Maps
Shows the number of mines active during 1908 for four types of iron ore.; Includes table of ore types by district.; "Mineral resources 1908, part I, plate I."
Geological Survey (publisher)
Harder, Edmund Cecil, b. 1882. (creator)
Geological Survey (U.S.); Andrew B. Graham Co.) (contributor)
Page Last Modified: 1/22/2018 11:04 PM