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Mineral Hill Mine Reclamation Project

The Mineral Hill Mine sits just six miles away from one of the most pristine locations on Earth—Yellowstone National Park. Scientists, researchers, and conservationists spend countless hours each year protecting the world’s first national park, which is known for its wildlife, geothermal features, and wild backcountry. That’s one reason Kinross Gold Corporation turned to Morrison-Maierle to develop a solution to remediate its Mineral Hill Mine.

Mineral Hill was an underground gold mine that operated from 1988 through 1996. It underwent reclamation in 2000 and was completed in 2002. The tailings from the gold extraction process were stacked up in a 14-acre lined containment area. An under-drain system collected and discharged to an evaporation pond.

Morrison-Maierle provided topographic survey and construction staking; engineering design; production of contract documents and cost estimates; the storm water permit, and construction observation. Although it took a lot of effort to locate and carefully patch the historic underliner, Morrison-Maierle’s “ziplock bag” technique isolated the tailings and saved the mine millions of dollars in water treatment costs and prevented hazardous materials from being introduced into the environment.