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<br />r -'Outcrop of the bottom, more dense limestone layer "A"-Band formed <br />' the hogback ridge. Eighty to eighty-five percent of cement plant <br />raw material (1957-1979) is from the 12' to 14' thick A-Band. <br />1 Plant conversion to be completed 1979 will enable use of <br />'~ the more abundant limestones--primarily "C" and "E" Bands. <br />~~ <br />140 to 180' <br />~- -- <br />i ~ <br />i ~~ <br />i~~'\ <br />/ / <br />_ Approx. 350' ~ <br />or 3 dragline cuts, casting <br />85~ of B-Band overburden <br />to ~ the west. <br />~ /~ <br />~~ ~- <br />SgNOST ~~\ <br />A-Band quarried from <br />selected 4th cut loca- <br />tions during recent years. <br />Excess B-Band cast east <br />and/or west. % <br />i ~ <br />-' ~ ~~ <br />\ ~ ~ <br />" D' <br />~ R41~~ 'oiVQ <br />A <br />~~~ ~~D~fpUs lr <br />~S•~ MfSrDNti <br />\~~ <br />Original surface <br />After quarry operations <br />9-77 REM <br />TYPICAL CROSS SECTION OF BOETTCHER A-BAND LIMESTONE QUARRY <br />AFTER 1957 CEP.~IENT PLANT MODIFICATIONS <br />LOOKING NORTH <br />No Scale <br />• <br />C~ <br />N <br /> <br />