Cangalli An American Company Searches for an Ancient River of Gold【電子書籍】[ James E. Bender ]

＜p＞Four hundred years of mining history in the Tipuani gold district of Bolivia. Had convinced a small Denver explorer that their 5,000 acre Bolivian property had showed evidence of an ancient river system holding large amounts of gold. Authorities questioned the theory. The company was determined to approve them all wrong. True story recorded by the author who later became a shareholder.＜/p＞画面が切り替わりますので、しばらくお待ち下さい。
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