Also known as: mtn.
MTN has various meanings in the Governmental & Military category. Discover the full forms, definitions, and usage contexts of MTN in Governmental & Military.
Arizona, Colorado, Idaho, Montana, Nevada, New Mexico, Utah, and Wyoming Mountaintop mining, sometimes considered a variation of contour mining, refers to the mining of a coalbed that underlies the top of a mountain. The overburden, which is the mountaintop, is completely removed so that all of the coal can be recovered. The overburden material is later replaced in the mined-out area. This method leaves large plateaus of level land.
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