History & Geology
Gangue Minerals - What Do They Tell Us?
January 2017 by Chris Ralph

The Verde Copper-Gold-Silver-Zinc District, Jerome, Arizona

Eolian Gold Deposits

Round Mountain, Nevada

Placer Gold Deposits in the Western States
…to see the huge differences between the gold production amounts of the Western States, let’s look at the gold production—both hard rock and placer—of these 13 states up to the present.
Placer Gold Deposits of Utah
The placer deposits of Utah occur in two distinct types of environments. These are 1) placers found adjacent to, and derived from, gold, silver and base-metal deposits; and 2) placers found in major rivers and derived from unknown, distant sources.
The Ely Copper-Gold District of Nevada

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