MINEBK00773

• County: San Miguel
• Volume: 17
• Document: Inspectr
• Suffix: A

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TITLE ttiND LRCO1tPORATION. ~ ~` '
'~ ..
The title of this property rests with the Liberty Bell Gold
Mining Compagy incorporated under the laws of the State of Missouri
witb~'T46,000 shares of capital stook par value X6.00 each.
.~ The principal office is located at rte. 131 State Street,
Boston, Liasa. ,
drtlmr HSnolow,~President,
Ilanry L, Rand, Seo~y. Treas., Boston, base.
. Chas. D. Chaco, Manoger, Telluride, Colo.'- _
RISTORY ,TOPOGF2AP2[Y ,GEOLOGY,ORE OCCURd2iCE~ETO.
This district was covered by thottnited States Geological
Survey. i
The Liberty Dell Mine & hill are described in professional
i t l
papers and bulletine,asfallowe:•.
Plinslow 2, Mining Soienti'fio, Preso 14, Bosqui 1, Of 2, ~ {
•Renehen 1.
DI'V. ELOP1lERT. '~ '
i
61l work is aarri ~ ?
od ,on at the presoatt Limo in t!n various i
levels driven on the vein$om the main upraise. Development work
done during the period from Oat. 1914 to Oot. 1916 consists of b000 ,1
footin drifts and 3600 Yegt in•upraiaos= total Db00 feet.
ISQf1I0D OF MINI;•iG d27D TI1.lD^~[tI21G.
d11 mining is done by aompresogd air machine drills, overhand ~ I '
atoping and the open ntope method in used throughout the mine with the
use of stalls to support t$e wnilo. The tivalle of the veins era fairly I~I
firm giving little trouble, but the Doff crumbling ore hna to De watched
alonoly in order to prevent accident; platforms uro placed on the atulla
on which the minors stand when ut work. Electric motors nra uoed chief- d
1y for traimnin~ in the minq excepting in drifts whore tramming ie done by li
muiea and by man power. t
~91do dumping oars made at tho,mino with 3~ , 1~ uxyd 1 ton capacity i
arq used. 3.,~ tone oars on tunnel level and 1 and 1~ ton care on the
upper levels. Tho ore Sn drawn from plaxilcod ohuteo along the levalinto
care and trmxmd to the ra;ee whore it Sa dunped into poalcots beneath t11e
levels, loaded into a skip paving a capacity of 4~ tone and lowered to '
the tunnel level. VRxon tl~a skip roughoo the lower level, it ducipe
automat1aa11y into a bin from which the ore is hauled to the dorsal Tram-
way.
The motlxod of timbering uoed Se oquara soto and atulla- chiefly stullo
Round timbers uro uoed, pill nro framed under ground by circular caws ;I
inotallod on the difforont~levols for that purpose. Timbers, vontilot-
Loa axed oanitary aonditione are Ronarally goat. Tho management le
capable cad oonsidorato of the welfare; etas safety of their omployoee,
16,000 tone to the average Production of ore per month hoeing an
average aooay VAlue of X4.00 per ton. Tho cost of mining the ore La
$1.66 per ton and 10 aontn per ton for trnneportation over an Aorinl
Trumnay two miles in length to tlxe miri whore it ie prepared for market i
by oonoontrntion and cyanide. Tho oonoontrntos aro shipped to
Tho Amorioaxi Smelting & Refining Oanpaiy, Durongo, Oolo. ~
IPl.•
Thoro has boon no new additiono to the equipment 8uring the pact
yam.
porbal rooommondotionn mado~-
Post not Loos stating number of men allowed to ride on cage nt ono
time.
Prohibit men from riding on Soaclod cage and poet notices to that
offset,
Put plotformo on main laddonvoys. '
To clean up old tLmbore.,
Pu'.'. guard around dump.
Toot cafoty olutotios on aagp.
Put guard around pulley in upper trumxny torroinal.