Mining historian Kerby Jackson introduces us to a classic mining work in this important re-issue of the Department of Interior publication "Geology of the Castle Mountain Mining District of Montana." This important publication on Montana Mining has not been available for over a century. Included are rare insights into the mining geology of the Castle Mountain Mining District. Some of the topics include the early history of gold, silver and copper mining in the area, insight into the geology of its mining areas, the local distribution of gold, silver and copper ores, as well their composition and how to identify them. Also included are detailed facts, history, geology and locations of gold, silver and copper mines in the area . Note: This edition is a perfect facsimile of the original edition and is not set in a modern typeface. As such, some type characters and images might suffer from slight imperfections or minor shadows in the page background.