Show REPORT ON PLACERS AT MINIDOKA DAM Prospecting Done by Geological cal Survey to Determine Value of Lands CLAIMS HARDLY UPHELD Sonic Some Good hOIl Values s Jin Found hut hilt They S ro Arc rOer Vl er Very Irregularly DI Db- I ii 1 ii ted A rt oh on claims above oho the ho l dam clan was recently made at the tIme request of oC the lie Reclamation Service Service Ser Ser- vice by i h L. L I C. C Gillett and W. W Lu J Walker Talker under the direction of or Dr Di David Davill I T. T Day of or the thc United States Geological Survey Sm and antl is now on Hlo file in iii the tho office of the Reclamation Service III in Washington Vash Wash ington where an any one Interested may eon consult ull It U. The rho investigation of or this ground g was undertaken taken last lust May Iu an and Juno In order to ascertain its mineral value before It I became submerged ed b by bythe bythe the backwater of the lie darn dam tom A Aplan Aplan Aplan plan to dredge c this thin ground has hns lately received considerable attention from promoters n and ant already one company has been beon organized and ant several everal claims rican near the he lower end nIl of time the the backwater have hae lavo boon purchased with wih a view to the he installation of or a dredge The claims were 1 those thos designated by 1 D. D I W. W Ross Rus supervising o of or the lie Reclamation Service and wore were situate along the time Snake river above aboc the thc dam dana which I is six Ix miles mies south of or the time station staton of or Idaho As 48 the tho water vater was vas already aheady ris- ris 11 lug Ing ng when the Investigation atlon begun began tho ho bulk of tho time work worl was done in tho the near neighborhood of the thc old workings In iii order ardor to determine th the value o of the ground that thal was formerly con considered profitable and to determine wh whether the lie claims made ninde were true The Thc values aluNI were ere found to be 10 Vei very Irregularly 11 distributed dis- dis and anel In In but htmL few cases equal to o the thc claims made by those Interested In Iii n the land l Pro h by rc To-t To cst t Pits lits Pis The Thc prospecting was accomplished by means of ur test lest pits panning and Dimpling the samples taken being shipped to 10 Portland Portland Ore Oro for or treatment treatment treatment treat treat- ment and antI assay sen TIme The number of or test Pits JIs its dug uJ was l i i The rime information gained by lf the field tests and amI assay assy of or samples sIH I IH not nol such s a-s a t to place valuation on an any particular claim but th the J results ul derived give tHay waver rage r- r age ige values alu 8 carried by the grounds t over oyer which the pits pHs were we distributed These pis pits located as to represent the thc gravel bearing portions of ot the thc claims anc and those In Iii ii the tho thanks banks s adjacent adjacent- to old oll kings are of oC special value alue being belus in- in of ot the lie character anti ami value of or remo removed d material upon which holders ma nay may base their claims II i It I was as found that In general the thc values were concentrated in the bottom bot- bot torn tom om of or tho the loam and ld the upp upper tipper 1 portion porton or of the underlying gravel and the pits were carried several eral e feet below helow this timis called so-called p pay pty y dirt This surface sol soil or 01 sandy loam llam is common and ant ranges In lii thickness fro Crom remit in two to l lOi 12 or Oi moro more feet The Tho gold gold guld was everywhere everywhere every overy- where of such fine fine- like hour lc particles that hat a n large c percentage of or It I passed through h a ti mesh screen screen For each pit Fill a record was kept showing the he nature lature of the thc ground and the results of ol the panning punning Samples weighing rom i 7 75 to pounds representative of f the value bearing aluc gravel were taken from rent each pit and ant al also o numerous I samples of or the loam and the he gravels gla below tho the pay dirt These were cre shipped to Portland for treatment anti and I the he results of time the us assays s 's are arc given In lii this his report Ocea Occasional Good Value O Occasionally ca the tIme value fl for or Individual 1111 11 ual cal Pits Ills ela a averaged et for Cor the time entire pit a as high hijii ax as a 31 a u cubic yard arl but the lie themore more common values ranged from flom r 5 to toZo Zo cents a cubic yard while very CIT few lilts idEs were ab absolutely barren of or nl e values ro No other minerals of an any commercial importance save Vo gold sold wore were found In Imi most places nothing was wa encountered ered to interfere with wih dredging or 01 other mining operations The Thc rocks arc are In general no la larger cr than a mans man's head although h in a a few places rocks lam laigo lalo enough to tu make trouble were found All Ai Ap c examination o of topographic opo maps to together with wih the tho loJ logs of or the tIme pits pis will wi Indicate for the time various locations loca ben tons time the of or tho he gravels above c alo normal water level or above tIme the high water level resulting from flom rein the damn dam am backwater |