Question

wondered is four mining​

Answer 1

Answer:

There are four main methods of mining: underground, surface, placer and in-situ. The type of mining method used depends on the kind of resource that is being targeted for extraction, the deposit's location below or on the Earth's surface and the capacity of each method to profitably extract the resource.

Answer 2

Answer:

Explanation:

Wonder Mine (Wonder claims; Wonder and Silk claims; Big Four Asbestos), Salt River Canyon, Salt River, Salt River Mining District, Gila ...