underground mines

  • The Underground Miners Website

    Conventional and aerial photos, videos, and descriptions of abandoned mines and collieries, mining towns, mine fires, and subsidences in the anthracite region of ...

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  • Underground Mine Mapping: Minnesota DNR

    On this web site, you'll find interactive mapping capabilities to compare the underground mines with base maps such as aerial photography, USGS quadrangles and roads ...

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  • Underground Coal Mines United States US EPA

    Underground Coal Mines . Greenhouse Gas Reporting Program . Under the Greenhouse Gas Reporting Program (GHGRP), owners or operators of facilities that

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  • Mining Wikipedia

    They followed the ore veins underground once opencast mining was no longer feasible. ... (4,170 ft), it is also one of the most modern underground mines.