MINEBK00838

• County: Gilpin
• Volume: 15
• Document: Inspectr
• Suffix: B

Etta Croea Tun. - 3.
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ORE 9~ & ORE BODIES '
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Ths oharaoter of or• bodier it true-fissure~veiris: Ther• ~'~
are ten 3oiewn veins but work has been lamely oonfined to two- i,
of them All i4~the veins are similar in dip, etiiki, drin ,r
filling, •ta.`The atrik~ ie north~aet and southwest and the`
'', ~~~ ~ ght •re shoots in the several '
dip is to the sou+h, There are ei
tunnels aomprieing the group varying in length`f'rom 26'~to'100'
.,
respeotively.-The eno7,esing rooks are granite and sohist and ~
_ _ ,...~r .. _,, .. ,;,
tlio Bangui is tale. .. '
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Tho`-wins vary `in width fiem 1'~ t• 8' , with `an ad~rage ~.:.:
width •f 4'. Length, 1,300*; height, 700'. The aharaater of
vein filling ie lead, iron.aulphider and quartz and the motalr 'I
are gold, silver, aepper, lead sad zino, with gold predomina-
ting. About one-fourth of the vein filling ie smelting ere and
the balano• ie oonosntrating ore. The a6erage value oY vein it
filling is ,~2b per ton and all ore is treated e£ the pnblio
werkr. j
S U R-FACE P L A A T.
Thy snrieoo plant ooneiet^ of a 3 h.p. gasolins~ engine
situate at the portal of th`e Etta Crers Tunnel and ue~d for
supplying air in this tunnel. `
n,
A flame blaokamith chop, 10' x lE'~, ad~eine thefpertal
•i the Chaffee Tunnel but to one side •f the pertnl A creme
f -the Etta
dwelliag house ie eituati 200 ~as`t o ~Oxene Tunnel=
,_; :., _
known ar the Lewor or Ae. 3 TunneS.. There it one ere bin of
60 tens aapaoity at the portal •f the Chaffee Tiunel.~
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fto preteotien againrt fire it provided ar all •f thi
tunnelr have addltiepal sxit^ through upraises oenneoting with
the tunnel above it.
.. ; . E. X, P L 0..3 I V E 9 .. :. ,:_:, ; r -'::n .:'.'
Oalifernin Oiant gSeAder - 40;b; Oermaxi Ineiloid fuee;~Ib-X