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III IIIIIIIIIIIII III 999 STATE OF COLORADO DIVISION OF MINERALS AND GEOLOGY Department of Natural Resources 1313 Sherman St., Room 215 Denver, Colorado 80203 DIVISION O F Phone: (303) 866-3567 MINERAL S F.4X: (303) 832-8106 ~ & GEOLOGY RECLAMATION September 25, 2001 MIN ING•SAFETY Bill Owens Governor Mr. William A. Beaz Jr. ereg E. walcner Bowie Resources Limited Executive DireUOr Bowie No. 2 Mine Michael B. long Division Dnector P.O. Box 483 Paonia, Colorado 81428 RE: Adequacy Review, PR-O5, Mine Plan Change West of Fault, Bowie No. 2 Mine, Permit No. C-96-083, Bowie Resources Limited Deaz Mr. Beaz: The Division has finished its review of Bowie Resources Limited's (BRL) submittal, dated August 23, 2001, that contained responses to the Division's adequacy review letter dated July 26, 2001. All issues have been addressed by BRL. The following are the Division's comments: Subsidence To validate the separation of potential effects of subsidence from Terror Creek, please provide a profile of the relationships of the Terror Creek thalweg, the elevation of the coal seam, the ground surface, and the angle of draw along a line perpendicular to Terror Creek and passing through the most westerly corner of the proposed longwall panel WD3. The Division has no further concerns. The submittal dated August 23, 2001 contained updated Map 27 and Map 27A, both date stamped August 27, 2001. The information shows that Terror Creek will not be affected by subsidence. 2. Please advise the Division if cliffs are in the vicinity of the northwest corner of panel WD3. If so, please provide the Division with revised pages in Exhibit IS that discuss the anticipated effects of rockfall (rock roll-out) to Terror Creek. The Division has no further concerns. BRL stated that no geologic hazards are in that vicinity.