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| Keywords: Gastonvilleclean.jpg en Image of a mine map of Gastonville Mine No 2 of the Pittsburgh and Chicago Gas Coal Company The left half has been cleaned and the right half remains uncleaned http //www pitt edu/~aeb59/index html Original Map created by Pittsburgh and Chicago Gas Coal Company Map from the University of Pittsburgh CONSOL Energy Collection Cc-zero Washington County Pennsylvania History of mining Maps of Pennsylvania Mines in Pennsylvania Coal mining in Pennsylvania | ||||
