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Awgwrt /992 Gypna 7L''C • Analym of Swkidrncr E,~ety on Ffjdmlogr ~ 31L <br />• on the thicJcnett of the mined coal, geometry of the mined pool, me of mining face <br />advancement, and geologic characteriuict of the overburden. <br />n <br /> <br />~' ,~„„ ~ AGZ lnr. • P.O. Bo: 77101 B • Suamdwt Sy.ingt, Colordo BW77 • (303J879~6160 <br />