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q •'~ <br />COLORADO WESTMORELAND INC. <br />ORCHARD VALLEY WEST MINE <br />ORCHARD YA LLEY MINE <br />ROOF BOLTING PATTERN <br /> <br />0 <br />0 <br />~D <br />5 <br />MAX. <br />5' MAX. <br />^ o <br />^ ^ <br />^ o <br />^ ^ <br /> <br /> WHERE PILLAR CORNERS HAVE SLOUGHED OFF <br /> E%CESSIVELY, MORE THAN FIVE FEET FROM <br />^ THE NEAREST SUPPORT, THEY WILL BE SUPPORTED <br /> WITH ADDITIONAL BOLTS OR TIMBER POSTS. <br />^ o <br /> O <br />^ o ~ <br /> MSS <br />O ~ <br />^ o ~~ O <br />O h <br /> ~ <br /> O <br />^ ^ h <br />Q} O <br /> ~ <br /> A? <br />p <br />~ <br /> do ` <br />. <br />3 <br /> <br /> ~' 2 <br /> <br />^ ^ ^ <br />o ^ <br /> <br />5'-+ <br />MAX. <br />5'M AX. <br />-~IAX. 20' <br />MINED WIDTH <br />Initial 11/01/86 <br />o•rr tr~runru enum2,~ <br />