The Arizona sentinel., 1902-01-22
La EGHrt-NA MINE.

In the early days of gold disco -ag.y of
 nla, lo4s' when the news reached 1e gol .li.i
 of sonora there was genera exod : us o3. able bodied men who were abe totg aw: northwest to the new Fl Dorado in ( a floral and the state of Sonora contrib lted m ..y.n ip the mining population. They took the 0 road, which was known as the '-camin rcaI from EStancia and Altar northweSUyyard aeir parallel JO the C7if. following the m ,.Il,... ridge known lS the >iIla ralge. jas: merlin ,.: G present DOuS;iar-. The rC-i3 .ei 10 NIj7u. ;.. ia passing the Giia raays saey vent wi nh few feet or yards of . very modest outc-op c quartz which no one seemed to consider of sui hclent value to merit any attention. That hum bic and insignificant iu1rtZ outcrop is today tl. outcrop of the great Fortuna mine.
 It Is situated on the westward slope and ne .rl Ri the base of the range of mountains ca4Ied some of the old maps the Gila range. Thi trends northweSterly and reaches nearly to tn Glla river at the point now known as BlaiSdel The railway in it's course to Yun& paSS, around the north west poiat of this rang. Where the rocks are exposed ai Shat point rha are mostly of ho1nogeGeo2S granite of .-.-a color and weaUheCes oas a5 tha e.lrfacaS gl,i;.n however. are mcch pits.-d a.. if 5v d.co.,7D.,.= lon Q! some SozJ 'e3- ,':l'e. jIt De-1rj the. ] gIyiag hi'.S UI E';i .c lar ,., -st.r lsc~,,r, CT rock which to the eXDaricacsd eve iadiel Stratined formations. They a-n indeed ,tr;.- fled, for the bulk 0: the range soushward a-. SoutheaStward Is composed Of reg liar stratii;n jaminated. hard gneiSSic rock. use the we
 ynelSSlc' Tn very general and cOmprnhcnsi- sense, for you can describe these rocks wis much more accuracy 1T you iocdiize them a mica states and horn5lendic sl ltns with inter polatlonS Of quartZite beds, especially in tn. upper part of the series. wi h ~-oal stains Sln- posed to be stains of coDpe~ ai1 Accommodation of copper ore. which thav probably are ai though there are pec1iia~itiA~ f color anF some NPsON cOlGrS. which laf;rE- - .g mo fh presence of some Oc}iar minera5 ne~~i!l- .. luritln, which bv it's decOm1o>i tioD has ssiv.. these eolors. The fact remains. however Uh.. the bullion from the upper part Oi tli. vein cor t,inS more copper than it now contains in tin, lower levels of the mine. The workings wllicj i've been carried on here have deVeloDed condition of things which cou d not be foretoltl rom an inspection of the oItcrop. The veir or lode appears to be a chimney. not a contino- GUS ore body. nor a continuous vein with an ore l-ooy or chimney or chute upon it. As re- 1'larked the outcropping points indicate that l lcre IS no very great longitudinal extension Of taiS ore body.
 The vein is remarkable first in this limited ont, trop< second. in it's continuity in depth its con tinued satisfactory richness. and the promise it eites or enrichment by further veins dipping into 1t on the foot-wall sides
 Some facts in regard to the product or yield: The ore paid from the surface. The product or ore extr Icted up to the time has been about 80 tons per day, which is sent to the 2)-Stamp mill, each stamp of which cruSheS about tons in every tive lty-four hours. The extraction is chiefly ani largely by power drills A force of 80 men is employed by this mine and mill. The greater part of the labor uadergro md and 1TlnlnS IS done by compressed air. The lode. was tod. was 6 to l5 feet wide. This large space permits the Use of power drills 70 great advantage. In the material hoiSted tlere are fragments of the wall rocks some oc " iich are iAroWn out. but many pieces pass thro gh the 1SlI They would prefer to reject most of this wall rock. but it wOg!G ta'le more time and ex- penSe than it does to nil it. and tn re is chance Of some cr i- cnG-3il.rg rod F'ro,n tleSe SC tOls of ro ,i- ,r ft,i .}.,:- tl..4 -,r r Prodnct is De-hapS -- ..t -r...rl D. esEa ....r month Some mOn.Es .t.t- ...,. ,,..,i .t..l A, high as 5900b0
 In the region of the Fortuna mine the lorna flODS hn W1Oil- mica Ia md hornblende slate, with some aTenaceouS layers Ike old micace0l lS SlndStoneS and quartZiteS. The mine Is surrounded by black hornblendic states and mica states. dipping Southward and SouthweStward at an angle of about i5 degrees and these slates are very evenly laminated, ridge after ridge.