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Homestake Mining Company May 10,2019 <br /> Regular(112d)Operation Reclamation Permit Application Package <br /> composed of locally derived Oligocene volcaniclastics and older Precambrian and Paleozoic <br /> rocks. <br /> Surficial deposits include Pleistocene9 glacial deposits (till and moraines) and Holocene age <br /> colluvium, talus, landslide, and fluvial deposits. <br /> I W'30' 10ew, <br /> r_ <br /> T <br /> �l T _j <br /> QT <br /> PC <br /> l y <br /> Salida <br /> _fWe <br /> no <br /> Poncho S n <br /> '1 <br /> PC no <br /> l <br /> T <br /> T <br /> l COUV�TY. FA4NJ' CiiAFFT-f ()I "`I l <br /> SAGUA011, - <br /> �_ �u R Sargcniti Mc PITCH <br /> KJ <br /> LOOKOUT 2PC <br /> CT <br /> - T <br /> w <br /> 0 2 4 s s MILES <br /> 3e I- `-'i—r 'r- z <br /> t5 0 S 10 KILOMETERS <br /> __ - -- <br /> EXPtANATIO <br /> OT Quaternary and Tertiary sediments,mainly post canic racks FW7 Mississippian to Cambrian sedimentary rocks <br /> � <br /> M Tertiary intrusive and volcanic rocks pE Precambrian rocks <br /> I( -11 Cretaceous and Jurassic rocks Contact <br /> tj P 11 Pcnrtsylvaitian sedimentary rocks k Fault-Ball and bar on downthroum side <br /> L J .line <br /> Figure 3-2. Geologic map of the Pitch Mine area. Figure from Nash (1988). <br /> 3.1.3. Geologic Structures <br /> Major structural features at the Mine are faults and folds associated with Laramide deformation. <br /> During the Laramide, reverse faulting was accommodated by the Chester fault, which is oriented <br /> approximately north-south along the western flank of the southern Sawatch Range (Figures 3-2 <br /> and 3-3). The fault zone is characterized by complex faulting that includes short segments <br /> separated by near-orthogonal tear faults (Nash, 1980) (Figure 3-3). Along the fault, the dip varies <br /> from 200 to near vertical, and at the Mine the fault dips 600 to 700 to the east (Olson, 1988) <br /> (Figure 3-4 and Drawing 01). The fault has accommodated at least 1400 ft of vertical <br /> 9 The Pleistocene epoch lasted from -2.5 Ma to 11.7thousand years ago (ka). <br /> EXHIBIT E-RULE 6.4.5(AMENDED RECLAMATION PLAN) Page 15 <br /> HOMESTAKE MINING COMPANY <br />