The Arizona sentinel., 1897-05-15

iioil InIs dlStrIct than any other IT : this lower desert country. They art not Of the order of poor mems mines they require capital to condition fol T successful work and the strictest
 economy of management. Exceptins the Jaynes group, there are many merltorlous prospects in Picacho, of g low-grade ores, but the wild, fantastic 8 tales of 50 to 209 feet of $2O to $50 7 per ton rock are rom&nces pure and ) simple. It is not the occasional hand samples of rich rock that make the value of a mine. It Is what, day after day, in continual average of an ore body that the commercial value is found.
 The "crosscuttiug of 50 to 200 feet
 ot vein, and no walls" as reported, is
 eminently correct, as there are no
 walls defined and gouge-cased in the
 district, so they could not we'll be in
 sight. There are zones, by courtesy
 called veins of segregation, with no
 regularity of system through the dis
 trlct. In these zones occur thin
 seams of quartz, pinching and swell
 ing from 8 ."shoe string" to a few
 inches thick; also detached pockets of
 rich rock. It is what is known to the
 miner as "spotted," like plums in a
 pudding. Now, to get these rich
 seams and pockets close epough to-
 gether to be able to work the entire
 mass, IS the problem. This, in many
 instances, is assured, so far as surface
 prospecting shows. Again. capping of |
 8 brecciated conglomerate in a cal-
 careous cement, generally, and gold
 bearing in pockets, occurs in apparent
 flows having defined trends through
 the ryolitic rocks. The entire basin
 IS made up of tumble of porphyriss,
 granites, ,slates, etc., with an oc-' casional intrusion of igneous rock,
 protruding as peaks through the un-
 systemized mass. Much gold has been
 taken out in places, derived i'll the opinion of the writer from these rich seams and pockets Of quartz. In some instances concentrators will be reouir- ed to recover the gold values iron eoated and scattered through the veip'i tutT.
 The mines of this district are ex- ceptionally easy of access, and the ore may be mined cheaply. The probable value of the ore will run from $2 to $lO per ton in gold. It is specially free. By modern methods, under competent economical management, with the favorable location-twenty- eight miles from rail facilities at Yuma and navigable river for five ! miles and to the river bank-this dis i trict may be made dividend producer. t
 Stories of large deposits of $50 rock ; and up result in harm. The posted mining man don't believe them. The novice, if of an economical CD ;turn,I does his own exporting, builds castles In the air on the half-dozen colors of t light gold in a pan test, really repres- 1 enting from $3 to $5 per ton and a which he is assured is $2O rock. Get r ting to the end of his financial rope b ne is choked off with curse on the :, gamble of mining, when really he has T lQt used simple business discretion in c 1is preliminary investigation. T
 There are up, and on the way, one ' -O-stamp mill and six other mills, by u me company, and not one foot of D ground regularly blocked out for stop- " ng. It is true, probably, as claimed st hat considerable development in a. n mall way has been done by nature in he cutting of gulches through and al tcross these ore zones. Yet a mining o, nan would like more tangible values z. ctually susceptible of measurement n sight than are found in few shal- VI Ow shafts and surface trenching. 'i
 Thls Ill nutshell is the condition ~ f Picacho district to-day. There are "' xtensive bodies of low-grade gold ores e' 1ith friable gangue, and straight st way free-milling amalgamating rock eI hat may be mined, handled and re- uced at specially low cost, after the ca rst expense of the. installation of the 3 equired hauling and reduction plants bs
 Do not infer that these are all of the inning camps, of the Lower Colorado ver. There are many properties - eing worked and some now under HM' M ond to Colorado people that will be card from in the early future. Re- m rence is here made only to the bet tn 1T advertised camps. There is no ou pom on, but the burning of powder Je