$200 million in gold extracted in Amazon mine through illegal licenses
Amazon.com: Goldage
Beschreibung der Anlage und des Betriebes der Semmering Eisenbahn, 1861 (German Edition): Birk, Fr. August, Aichinger, Anton: 9780341284338: Amazon.com: Books
Golden Amazon (full documentary) - YouTube
Amazon.com: Buy Gold: Beginner's Guide to Buying Gold Bullion & Coins eBook : Gustin, Mark: Kindle Store
The Devastating Costs of the Amazon Gold Rush | Travel| Smithsonian Magazine
Gold Mining in the Amazon - Amazon Aid Foundation
Gold mining: From the beginnings to the future | Xetra-Gold®
The Devastating Costs of the Amazon Gold Rush | Travel| Smithsonian Magazine