Park Mine Reclamation Project Montana Department of Environmental Quality 5:17 7 years ago 351 Далее Скачать
Reclamation work at Absaloka Mine Montana Department of Environmental Quality 5:03 6 years ago 959 Далее Скачать
Coal Mine Reclamation: Abandoned Mine Lands, Modern Mines, and What You Can Do To Help Appalachian Voices 18:04 3 years ago 571 Далее Скачать
Mine reclamation in the Mary Ellen Gulch watershed near Snowbird, Utah USU Extension Forestry 30:52 5 years ago 144 Далее Скачать