This method is often considered safer, as well, and doesn’t require extensive electricity rigging and water piping. This is because removing the terrain surface, or overburden, to access the mineral beneath is often more cost-effective than gouging tunnels and subterranean shafts to access minerals underground. Surface mining is often the preference for mining companies. These include strip mining, open-pit mining, mountaintop removal, dredging and highwall mining. There are five recognized types of surface mining, each with specific variations depending on the minerals being extracted. In particular, surface mining is used to retrieve sand, gravel, stones, coal, iron and other metals.
Surface mining refers to the removal of the terrain surface to access minerals underneath. Surface mining makes up a huge percent of mining projects.
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