Reprints: Coal was mined in Boulder County as early as 1860

Dr. Maynard Peck, in his thesis, “Some Economic Aspects of the Coal Industry in Boulder County,” writes:

Boulder County embraces within its boundary lines an area of 786 square miles in the form of a parallelogram about 32 by 24 miles extent. The western two-thirds consists chiefly of mountains, which run chain-like ridges westerly direction towards the Continental Divide, and tower up to an altitude of 13,000 feet and more. In these mountains are found a number of metals which have added much to the wealth and fame of Boulder County.

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