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4� <br /> A//Ily <br /> s� 'l <br /> rY S.rr � <br /> aB. <br /> Figure 33: Golden Cycle mine from Battle Mountain(US Geological Survey public domain photograph taken by <br /> F.L. Ransome,1903) . A portion of Goldfield is visible at lower right,and part of the Vindicator dumps are visible <br /> in the upper left. The red star is the approximate current location of the Vindicator Valley compliance <br /> monitoring wells. <br /> Prior to 31 January 1994, there were fairly large waste rock dumps and a relatively small open pit at the <br /> head of Vindicator Valley. In 1999 the Altman pit was mined, ultimately consuming the earlier open pit. <br /> Mining of the Altman pit concluded in 2007, and the pit was back-filled over several years starting in 2008. <br /> Figure 34 shows Vindicator Valley in 1991 and in 2013. The location of the Vindicator Valley compliance <br /> monitoring point and the Precambrian-diatreme contact are also shown. <br />