Arizona republican., 1897-09-16
TO MINE IN YUMA COUNTY.
The Rio Colorado Company About to
 Begin Active Operations.

Gold Extraction company, to the Re publican he says that the company has dispatched three four-horse teams and three large ore wagons overland to it's group of mines in Yuma coun- ty, this territory. The outfit is now on the road somewhere near the line between Arizona and New Mexico In a few days the boilers, engines and mill will be shipped from Colo rado City, Col, by rail and Colorado river steamers. The mines are about five miles from the Colorado river and the mill will be put up near the river. Teams will haul the ore from the mines to the mill. The capacity of the mill is about fifteen tons of ore per day. The mill is expected to be dropping about the last of Oc- tober.
 MT. Pearce says in his letter: "The local and eastern press has so much Klondyke talk that Arizona gets lit tie notice. The battle is now ours. though. If there was general write up of Arizona's gold fields in Omaha. Kansas City, St. Louis and New York. itNwould do the territory much good. and many would come We have
 
 Cripple Creek miners, wanting to get down into Arizona Many will come anyway. The railroad circular, Salt River Valley. is sQod but it lacks in formation as to the gold mines of Arizona. A shower of good general information on the gold mines and mining in Arizona would make Ari- -zonans, if we'll distributed at Cripple Creek. I have set the bankers of this state all on edge for Yuma<c- un- tvs gold felds'
 The company has issued a circylhr giving the history and geology of it's properties in Yuma county from which The Republican takes the fol- lowing:
 The most attractive gold mining re- gions lie in southwestern Arizona. If one looks upon the map to the northwest corner of the territory and draws dQWn11ardl line to the inter sestion of Tombstone, ard then views solthwestern Arizona, then the great gdd fsegien is located This regEm is the continuation of the California gold belt, ex- tending on into Old Mexico in a south easterly direction. Most of the mountain chains rum from AG northwest to southeast These many chains of mountains rise up abruptly and con- tinue along for fifty or two hundred miles at a stretch. And in southwest ern Arizona they are ribbed with veins of the regular California milk white quartz. At least the central regions of this belt so outcrop. The veins striking not always but gener- ally north and south as diagonallv across the force Hines of the old and gigantic eruptions that produced these ranges of mountains. The veins are c.esfly volcanic into erstices, .or frac- tures, crevices, filled from below up- wards by volcanic thermal springs or eXcretlons. as solutions, in which the silica crystahzed and clogged or fill ed up the eruptdve cracks in the earth Those solutions were full to the;1 power of saturation, of gold. silver copper, lead, iron and sulphur, and as the silica crystalized, so did the me. tallic bases, and there they are tc this day awaiting the miners extrac. tion- Many of these veins are oxv dized far down, and the gold is fret and often very coarse particles. It i: this condition that has been the cause of so large production of fret placer gold from Arizona.
 Above Yuma the Colorado river. a about twenty miles, has rim bank. of rock and full of pot holes, from which came the first discoveries O gold in any quantity. A single sho vel full often washes out s20 to $50 as it is lifted out from the pot holes This rim rock region banks have sev eral feet of sand upon them. It wa the opinion of experts that if wate were systematically conducted t these placers they would pay exceed ingly we'll.
 Forty miles from Yuma on the eas side of the Colorado river is the Flu reka district with it's rich ores of ar gentiferous galena with gold. Tn lodes are from one to twenty mile from the river, reached by trails; tn country rocks are metamorphic fran ties, quartz and states and porphy ritic quartz with green stone or die rites along the veins, and some schis tose materials. To the north an east is the Silver and Castle Dom districts, with ores of value, variou. and up to s137.50 per ton. These ore pay a profit of s45 to s102.50 per tor They go to San Francisco and Ell Pas for reduction.
 Upon the west side of the Colorad river here are the mines of the Pi eacho district, in which are intereste nanE- Denver, Colorado, people. Thes /1sre volcanic ores of gold, chiefly st and the Jaynes group pTbduced fro1 ten-starc2 mill values of about c rangin G eth;,$ $1 900 ito $500 per da / for 7leu i'ae deha4 jour years and a half { mil .I,e Cne ,osIla are averaging SIS t S2O .itss a,,d pure milling -sl9f' frieS are undergo DScsh n. nss.sro1 a bo ozatiols of interest
 up ' 1s- 400 claims Gccate