Mining and Engineering World . 6ft. it gave out, and was succeeded by abarren zon r I ft, below which , halcop; rite and pyrite come in, in aquartz gangue. At the bottom of thedeepi prosp |M • t,u ninl ation of the vein is increasing, and yer) nice chalcopj rile ore is found vcr.ig. samples taken from open cut ,,. i assaj 0.06 oz. gold, 2 ozs. silver. iei .md I 6 I lead while thosefrom 3 cut. Inghcr up the hill. 0.04 o gold, 1 6 ozs. silver. 2.7 I, opper and 1.2; lead drift hasrun in on the vein a short distance be-low the lowest of the cuts menti i and is some 30 ft. long, showingthe vein
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Mining and Engineering World . 6ft. it gave out, and was succeeded by abarren zon r I ft, below which , halcop; rite and pyrite come in, in aquartz gangue. At the bottom of thedeepi prosp |M • t, u ninl ation of the vein is increasing, and yer) nice chalcopj rile ore is found vcr.ig. samples taken from open cut , , . i assaj 0.06 oz. gold, 2 ozs. silver. iei .md I 6 I lead while thosefrom 3 cut. Inghcr up the hill. 0.04 o gold, 1 6 ozs. silver. 2.7 I, opper and 1.2; lead drift hasrun in on the vein a short distance be-low the lowest of the cuts menti i and is some 30 ft. long, showingthe vein jo consist of quartz, carryingcbalcopyrite and pyrite with practicallyno gal. n.i Standing on the dump of thisdnti. at an elevation of 3500 ft. and looking northwest across the canyon, a tissure is observed cutting clown the face ofthe bluff. This break is on the directstrike, with a similar dip. and is 1mto he the continuation of the Ouray vein.which is probably the case, but has notyet been actually proved by prospecting. Main Workings at the Red Cliff Mine. Big Casino i both sid. 1 ydden c-cck from the bend, and running to the summ ndge on tli. udl onto that to the south The formhere i I ne as thai veral later The second vein lies o tin owing to tl overed with , „ vi snow li is s , i, l to be of a similar ; i iraj vein, described above. To the northwesl oi the Big I a just over the high peak, is the Red Ilift 998 THE MINING WORLD November 1910. Extension. The continuation of the up-per vein- of the Big Casino is said to tra-verse this property near the crest of thehill at an elevation of 5000 ft., but owingto the ground being covered with i> ins.of new snow, was not visited. Lowerdown on the mountain, at an elevation of4500 ft., is a small mineralized zone fol-lowing a fracture in the country rod;having a course of X. 55° E. (mag.), witha vertical dip. The ore occurs in the frac-ture and branching seams over a widthof 4 ft., the mineralization is chalcopy-rite and pyri