Credit: Courtesy of the Pennsylvania State Archives
This map of the Connellsville vein, prepared for the H.C. Frick and Co., shows coal veins, rail lines, and the location of coke ovens.
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"Map Showing Location of the Famous Connellsville Coal Vein," circa 1890.
Credit: Courtesy of the Pennsylvania State Archives
This map of the Connellsville vein, prepared for the H.C. Frick and Co., shows coal veins, rail lines, and the location of coke ovens.
