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Unformatted text preview: Acidic water also interacts with aquatic life and humans; this often creates injuries. The Little Rocky Mountains in north-central Montana is the site of the Zortman-Landusky gold mine. The mountains served as the tribes; major source of drinking water in the late 19 th century. Large-scale mining began in 1979 with the Z-L gold mine. The mine was eventually a failure due to inexperience, lack of sufficient state rules, and an exaggerated production schedule. After two decades, the Canadian company produced $300 million in gold, but Montana had a $33 million cleanup bill. Leach pads were built on top of rocks that contained sulfide minerals. Acid mine draining came about from this and created a toxic cocktail which polluted the area’s streams. By the late 1980s, there were plenty of cases of lead poisoning and cancer from the residents....
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- Spring '10
- Geology, Sulfur, sulfide minerals, Little Rocky Mountains, Sulfide ore bodies