Eagle Pass, TX, United States
Eagle Pass Coal Mines. Although the Indian, Spanish, and early anglo-American inhabitants knew of this area's large bituminous coal deposits, commercial mining did not begin until 1885, when F. H. Hartz opened a hillside mine near the Rio Grande. For a time, it was the largest producing mine in Texa
s, but damage from an 1892 fire caused it to close several years later. Hartz then started another mine for the Maverick County Coal Co., which evolved into the Olmos Coal, coke, and Oil Company. Unde
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