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MINEBK00861
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Last modified
1/5/2009 10:02:38 AM
Creation date
11/18/2007 12:19:52 PM
Metadata
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Template:
Mine Books
County
Boulder
Volume
9
Document
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Suffix
A
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-7- <br />MINING AND MINE METHODS. " <br />Principal work has been done in and throughthe Ingram <br />shaft, now 700 it. deep. <br />drift at 120 ft. level 2. 600 ft. ' <br />" " 170 " " - - W. 90 ft. <br />• " " 245 " " E. 450 " " 350 " <br />• " " 315 " g 500 " " 500 " , <br />• " " 415 " & 350 " 430 " <br />• " " 500 " " P 100 " " 416 !~ <br />" " 600 " " E 700 " " 416 " <br />" " 700 • " E 100 " " 130 " <br />. Most of the ground betneon the levsls has boon stoped out. <br />Aork is being carried on at present in the 245 ft. level <br />a^.aet in st~ping, and driving the level. <br />A 600 ft. edit tunnel on the veint is reported as drift at <br />120 ft. level. <br />The ore is broken b~; machine and hand drilling. <br />Delivered at the shaft by scoop oars and hoisted by <br />steam power to surface. <br /> <br />
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