Silver Mines of Granite County Montana
The principles of economic geology By William Harvey Emmons (page 248) Sericitic Silver-gold Veins.—The sericitic silver-gold veins of Granite County, Montana,1 include several parallel lodes that are traceable for a…
Silver Mines of Southwestern Idaho
From The principles of economic geology By William Harvey Emmons (page 248) Gold-silver-adularia Veins.—The gold-silver veins of De Lamar and Silver City, Idaho, are post-Miocene deposits that were formed very…