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�..� COLUMBUS PORTAL <br /> r <br /> EL 11, 242 <br /> I � <br /> / MINE DRAINAGE <br /> MINE WASTE DUMP. L=._ <br /> EL 11,242 <br /> EL U, 205 � EI �.224 <br /> ACCESS ROAD <br /> f EL <br /> E WASTE DU <br /> % <br /> i <br /> r <br /> COLUMBUS MILL <br /> EL.A.190 <br /> / PD } <br /> �gS , AR�A MINE WASTE AC <br /> \�Tp <br /> CSC <br /> BLDG. 10 <br /> EL, 160 <br /> SST POW q` ` ' C%, IL �� 40PD/ <br /> \ CINIPWATION COLUMBUS MINE SITE ; <br /> SCALE : I W. % 50 FT. <br /> •IWERTON.COLORA00 <br />