Though reduced in numbers by the end of their journey, they brought back gold. The PreInca civilization in the land we now call Peru was deserted for some reason about 20,000 years ago. They not only could prospect and mine gold and silver, they could plate gold upon objects! Welcome to an ancient fraternity – gold mining!
Jun 27, 2019· Gold Deposits. Homestake Mine, located in western South Dakota, was created in 1876. Since the first production in 1878, almost 28 million troy ounces of gold have been extracted, worth 987 million dollars at present price causing the mine to be the most valuable in the United States.