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Surface mining is forms of mining in which the soil and the rock layer the mineral deposit are removed. It is the other way of insubordinate mining, in which the overlying rock is left behind, and the required mineral deposits …

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Advantages of surface mining include economic and financial benefits for miners and communities and a safer alternative to pit mining, but its disadvantages include environmental impacts, such as erosion and contamination.

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The Surface Mining Act is a reclamation law that requires a permit for each mine that: (1) results in more than 3 acres of mine-related disturbance, or (2) has a high-wall that is both higher than 30 feet and steeper than 45 degrees (RCW 78.44, chapter 332-18 WAC.