MINEBK00416

• County: San Miguel
• Document: Manager
• Suffix: A

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Ore Reserves.-To all intents and purposes the ore above the 100 Level is oxhnust
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decently, howover, in drawing from this portion of the Mine, we hove discovered cmieiderublo
ore which appears to have been lost in eaves. We think w•e may be able to recover probubly f '
10,000 tons of n milling grade from these atopea. ~
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Orcr the 800 Level we now Imve in sight about 50,000 tuns, most of which is of good I''
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;,jade. `Phis amount may Us inoroased by further development on this level.
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Buhceen the 800 and G00 Lovele, n vary Inrge tommge (probubly •300,000 tons) lms Leon
olrened op. With the oscoption, however, of ocensionnl shoots of rich are, this tmmnge must `
bu called low grade. Our comparatively high operating expenses preclude the possibility of F
1' milling eery much of this ore under existing circumetnnces, but iwprovod conditiaus will allow n
u large proportion to be milled at n profit. Thu are botweou these levols varies in many ~
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respects from that in the uppor line, being much harder and without the gouge or talc ou thu ~
bonging wall, which was so porsistent in the old scopes. i
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a short distance above tho G00 Level there seems to be u return of the well-kuuw•n
'l'owboy churucteristics, uud although sulphido oro is seu~ in Inrgu quantities, Qie general
the appearance of the qunrtx caincidea with that in tlw uppor• l[inu, mid tale ie again in evideucu. 4 + 1 I`

Thin condition of alluira is still more marked below the 600 Level. "{
On the i00 Leve: two ore-bodies have been opened up, which appear to hove their apexes ~
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at or uenr the 000 Level. In both of these rho vein appears us in the upper liinu, and there is ~
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still more resewbinuce to the productive aru of post years itt recent duvulupmeuts on thu 800 i
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Level, w•heru the vela ie stronger uud more oxidised thou it has been ou any level below
the 500. gt'.~i .^
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It is us yet tau curly to estimate the tmmagu below the 000 Level, but if tlw ore-bodies t •ti
ore as lung on rho 800 us mi tho i00, w•e should hove nt least 90,0011 taus uvuihilile, with +j j.
proslH!cls fuvourublo for u larger tounugu and iudicutious that the vein will be still Letter
ach below the 800.
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:~s THE MILL.
uch Yo change has been made in the mode of troutment or in the uuwhinery pertaining to
the milling plant. liuch hn~, however, Lean done in topair work end in bringing the lilt] up i ~ ~
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