Arizona republican., 1918-04-07
Mines of Mayer
(BY E. w. Bower

MAYER, Ariz., April 2.-Tndoubt- odly. the most important strike in tho copper mines of the Mayer section ore those recently made in the Blue Bell mine on the 500 and the 1.200 foot levels. There are six lenses of ore in this mine that outcrop or have been worked from the first level down through the intervening levels to the 1000, the pay ore averaging in width from eight to forty feet. On the newly opened 1,20O foot level, two of the largest ore bodies have recently been opened up and there is every reason in the world to expect the other shoots to come through to this new level. But the interesting thing that is so pleasing to the mine man. agement and to everyone who has at heart the future of the Mayer district, is the finding of two new ore lenses which did not outcrop, but have been found apexed at the 800 and the 1900 levels. Easing the length of these two new ore lenses upon what has been proven in the develop ment of the other six ore shoots, which are stronger and higher grade on the 1000 foot level and the two shoots on the 1,200 level, there Is reason to expect that the depth of the mine will be at least another 1,200 feet, but there is no one to say there will not be other ore lenses developed when the present depth is doubled.
 Mine Superintendent DeCampt is just as much at sea as to the future depth of the mine as anyone. Yet, he firmly believes that the ore lenses have only just commenced to appear. The "bottom" may be reached in 3,O0U feet or it may be five or ten thousand feet It has not yet been determined what the eruptive formation of the Blue Bell district is, but the theory most generally held is that it is the granite of the BradshaWs which makes it's first appearance south and west of the DeSoto mine which would make 1t. about five miles from the Blue Bell mine. Easing the possible depth to the granite at the Blue Bell by the dip south of the DeSoto mine It would be several thousand feet.
 At any rate the management oi both the Blue Bell and the DeSoto for the DeSoto mine has much the same ore formation as the Blue Bell are planning big things. Superin- tendent De Camp expects to be break iHS loU lO0S udlly On lit llONiS opened 1900 level and soon, three shifts will be working on the drit that is being run on the 500 foot leve south, to tap the Blue Thunder orr 2,200 feet from the main shaft. Ther' Is reason to expect that new or' bodies will be found between thu shaft and the Blue Thunder strike for it is practically all virgin ground with excellent surface outcroppings.
 The development of other mines il this Mayer district at depth is prov ing up the Blue Bell in every case In the Arizona Binghomton, the or is in lenses just the same, which hav been found to continue unbroken iron the upper levels to the deepest level 500 feet. Some of the best ore bodie in the mine have apeXed on tn lower levels. In the Copper Queer mine, the same condition exists. A the present time, an excellent grade 0 chalcopyrite ore Is appearing in tn new work in the winZe approaching the 300 foot level below the adj which is supposed to be the sam lense that was encountered 200 fee higher up, where feet of per cen copper was crosscut.