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Rule 2.' Permits <br />• During the period from 1906 to 1908, the Quinto Mine produced coal from west of the current <br />proposed permit boundary near the northwest corner of the leased property. Reportedly, the mine <br />in the L seam had a height of five feet and produced a total 169,903 tons. No effects of <br />subsidence were observed with respect to this small mine. The Frederick Mine, located east of <br />the permit area in Widow Woman Canyon had extensive workings in a coal 300' - 500' below the <br />Primero in the 1920s. There is little evidence of subsidence at this site. <br />The Primero Mine portals are located in the mouth of Smith Canyon near Segundo. This mine <br />extracted six to eight feet of Primero Coal using room and pillar techniques with secondary <br />recovery from 1902-1925. The portal is located at approximately 6900' MSL and the topographic <br />high in the area is 7200' MSL. There is no evidence of subsidence in the area from reviewing <br />aerial photography. <br />• <br />• <br />~~~ <br />2.05-120 (revised 07/25/01) <br />