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Homestake Mining Company May 10,2019 <br /> Regular(112d)Operation Reclamation Permit Application Package <br /> —� <br /> 107 �,�.,,,,. .� 10 �r, , fir. ,5.,�•0:,�t <br /> O <br /> IN <br /> 0 o <br /> ( olora6 Springs <br /> co ■ <br /> ■Buena Vista. <br /> r <br /> �\Vcst Elk N 1,►xr } <br /> \'Olcanic Field f.i <br /> C� d,° i\<illev— <br /> l� l ■ Gunnison <br /> _ Salida 505 , <br /> h• Sargent, i4co Sa i' <br /> caldcla l0 <br /> Juan . 7- <br /> ' 1 o <br /> Volcanic Field o <br /> Valle <br /> �- <br /> L It r <br /> � lamo� / f <br /> 0 20 40 Miles <br /> -,Lj 107'0'0"W 106°0' !105'0'0"Vi <br /> - - <br /> Note: Pitch Mine location(red star)is shown relative to position of major regional physiographic features.Only the two nearest <br /> calderas of the San Juan Volcanic field(Cochetopa and Bonanza calderas)are shown and labeled. <br /> Figure 3-1. Southern Rocky Mountains (SRM) physiographic province. <br /> The youngest rocks in the area are Oligocene8 in age and volcanic in origin. Extrusive volcanic <br /> deposits include watedaid tuff, and silicic ash and andesite flows. The source of these deposits is <br /> likely the Bonanza volcanic center, located approximately 11 miles to the southeast(Olsen, 1983-1 <br /> Goodknight and Ludlum, 1981). Intrusive volcanic deposits are limited to two small rhyolite plugs <br /> located about 3 miles south of the Mine. Within the Oligocene volcanic strata are clastic deposits <br /> 8 The Oligocene epoch lasted from--34 to 23 Ma. <br /> EXHIBIT E-RULE 6.4.5(AMENDED RECLAMATION PLAN) Page 14 <br /> HOMESTAKE MINING COMPANY <br />