Mohave County miner., 1916-08-26
RESUMES DEVELOPMENT WORK
 ON EXTENSIVE SCALE
CFrom oatman Section Daily Miner.)

The Esperanza, which has been idle for want of machinery most of the summer, has resumed with three full shifts. It will sink as rapidly as plen- ty of powder, compressed air, men and money will take it to the 5OO-foot level. Then it will do crosscutting and a large amount of drifting, going at least 1000 feet both northwest and southeast and this work probably du- plcated by being done on two parallel lodges.
 For a clean-cut surface showing, with lodges that are distinct, immense in size and persistent, with values av- eraging as well as any in camp, there are few, if any, superiOrs in Oatman of the Esperanza group. It has two mammoth Assures paralleling each other and traceable with ease for 1000 feet. One of them near the shaft is between 50 and 70 feet wide and the other about 30. In a period of six years, under the ownership of Joseph Krauss, the locator, they have been sampled and prospected and average surface assays have run from S2 to s. Mir. Krauss has many times compared the values obtained with the surface averages of the Tom Reed and United Eastern and has frequently made of fers to wager that the surface of the Esperanza would average from 25 to 50 cents better than either.
 It is a group that has made a par ticularly strong appeal to the mining instincts of George W. Long and J. L. McIver, who are heavily interested in the company with J. P. Loftus, H. L.. Griswold and other men of importance in the mining world.
 The shaft about the center of the group and between the lodges, now 21O feet deep, was chosen as a site where the values of the great ore bodies should be close together or pos sibly might converge with depth and it is hoped that at 800 feet this may occur. It is up deep right-hand can yon on the road to the Lazy Boy, also Long and McIver property.
 High grade ore on the surface has been found higher on the hill at the northwest and Professor James c. Ray, who examined and recently com pleted a report upon the property, ex- pressed the opinion that big ore shoot lies beneath. But the present shaft was started and the plant is there and working. With Professor Rays concurrence, it was determined to sink to the 500 and drift out 1000 feet after the shoot. This will tell the whole tale of the value of the ledge intervening and in going there is no danger of getting lost for the ledge marks the way like high board fence.
 The surface shows a heavy trachyte flow and it will be necessary, accord ing to Professor Ray, to sink about 500 feet to get under it and into the earlier andesite. The surface of the lodges shows a replacement with both quartz and calcite, together with im- mense quantities of breciated mineral and signs of thermal action. It is in the spur of mountains back of the Boundary Cone and, like the Wrigley group to the southeast, the erosion has been sufficient to bring the replace ment closer to the top and leave the values there to be found without go- ing so deep. The Highland Chief ledge of the Wrigley group converges with the larger Esperanza ledge fur ther back in the hills between the two groups.
 The shaft flow of water is 40 gal Ions a minute. This is being pumped with compressed air, but later the air will be used for the drills only and steam will be run down the present air pipes to drive the pump. There is an air pipe between the Lazy Boy and Esperanza and at any time one can have air from the other.
 When Mir. Loftus paid his first visit to Oatman it was not his intention to make any investments. He came mere ly out of curiosity to see the camp. i He looked it all over and the show ing of the Esperanza so impressed him that he admits that he could not re- sist and was soon in the game again, doing big things on the lines as he used to do them in Nevada.
 MT. Griswold, president of the com pany, up to three years ago was sec retary of the Monarch Pittsburgh at Tonopah. Since that time he has been at the head of the Keystone Iron Works of Los Angeles. He is busi- ness man of rare acumen and though | quite young in years has made lots
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