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Coal mines were usually located near urban centers for economic reasons, they required a larger work force to extract the coal and were generally owned by big business. Smoldering fires (some begun in the 1870s), subsidance of land and mine drainage are among the impacts that the extensive coal mining has left on southeastern Boulder county.
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Learn how minerals are found, mined and processed for end use. Visit local mine sites to learn about the history and future of mining in Cornwall. Find out about minerals and their properties and what will happen when they eventually run out.
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