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J. E. STOVER 8~ ASSOCIATES <br />2768 COMPASS DRIVE, SUITE 101 <br />GRAND JUNCTION, COLORADO 81506 <br />PHONE: (970) 245101, FAX 242-7908 <br />MINE ENGMEERING <br />MINE RECL/1MATIOH <br /> <br />February 13, 1998 <br />r.. David Berry <br />Division of Minerals & Geology <br />1313 Sherman St., Room 215 <br />Denver, CO 80203 <br />Re: Bear No. 3 Mine <br />Rock Dust Usage <br />Permit C-81-033 <br />Dear Mr. Berry: <br />iiiiiiiiiiiiiiiiiii <br />ss9 <br />CIVIL ENGRIEERING <br />CONST. MANAGEMENT <br />The Bear No. 3 Mine was dusted with crushed limestone, beet pulp and marble. The rock <br />dust was obtained from the following vendors. <br />Limestone <br />Calco Pitkin Iron <br />Salida, CO Carbondale, CO <br />Beet Pulo Marble <br />Grand Mesa Lime Basins, Inc. <br />~ Delta, CO Wheatridge, WY <br />Bill Bear, Sr. was asked about rock dusting practices in the old mines in the area. He <br />responded that the mines were dusted but he could not recall what material was used. <br />Please call if you have any questions. <br />Sincerely, <br />J. E. Stover, P.E. <br />Consulting Engineer <br />cc: Dan Bear <br />i <br />