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How to Order

IGS - Store-Books & Maps
Browse Years (grouped by year):

The Copper Deposits of the Seven Devils and Adjacent Districts (Including Heath, Hornet Creek, Hoodoo and Deer Creek), 1920

A Preliminary Report on the Clays of Idaho, 1920

A Reconnaissance in South Central Idaho Embracing the Thunder Mountain, Big Creek, Stanley Basin, Sheep Mountain, and Seafoam Districts, 1920