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Powderhorn Coal Company <br /> 1998 Annual Subsidence Report <br /> December 31, 1998 <br /> r ..� scw.ernaR.:r."'•`'a"'•' —.-t-_,presr:7e-:csr:."' . <br /> RECEIVED <br /> JAN - 7 1999 y <br /> DIV. OF MINERALS & GEOLOGY <br /> GRAND JUNCTION <br />