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<br /> <br /> <br />1 <br /> <br /> <br /> <br /> <br /> <br /> <br />1 <br />1 <br /> <br />~J <br /> <br /> <br />1 <br />MT. GUNNISON NO. 1 MINE <br />LANDSLIDE STUDIES <br />ARCO COAL COMPANY <br />November 1980 <br /> <br />