Bisbee daily review., 1905-12-26

tion-can Be Had on Application.
 The Bradshaw Mountains Of Arizona have given their name to a quadrangle which has been mapped by topog- raphers and geOiogists of the United States Geological Survey. A folio de- scnptiye of this quadrangle has re- gently been prepared by Messrs. J. A. JaggRr. jr.. and Charles Palache geologists of the Survey. II includes one topographic may of the quadran- gle, one may Illustrating the real ge- Ology and one Illustrating the econom- ic geology. a page of exceptionally fine photographic views.
 The quadrangle is in the southeast srn part of Yayapai county, and in cludes a very small part of Maricopa county iR its extreme southeast cor ner. A portion of the Prescott For est Reserve occupies the western half "a mountainous region including all the higher summits of the Bradshaw Range. The City of Prescott is two miles north of the northwest corner of the quadrangle. and Jerome. a min ing town. is seventeen miles north of the northeast corner. The only set dement's in the quadrangle at the time oT the survey were small mining camps and scattered ranches. On the north the Prescott and Eastern Rail road enters the quadrangle near Val Verde shelter and terminates at May CT Station
 That part of the folio in which the mineral resources of the quadrangle are discussed will be of most general interest. They include gold. silver. copper and iron ore deposits. building and ornamental stones, and undevel- oped bodies of volcanic ash.
 No definite statement of the out put of precious metals from this re- zion is possible, but an estimate based sn scattered contemporary statistics and on the Mint reports gives an ap- proxima1e value Of $9 800 GOO. about equally divided between gold and sil yer. At the time of the survey (190D only two or three large mines were actually producing. and the output of the district chiefly gold. was probably less than s2OO GOO. A number of other mines. recently active and of demon strated value, were closed down by reason of litigation or other adverse
 
 circumstances.
 The ore deposits of the quadrangle. with few exceptions. are fissure veins sf simple structure. The veins may be classified. according to the domi aant values of their contents, into gold. silver and copper deposits. and have been so indicated on the map in most cases, but the distinction be. tween the classes is not sharp, since aH these metals commonly occur to- sether. and nheir relative amounts may vary widely in different portions sf a single deposit.
 The important mines in the quad rangle are in it's northern and western parts and occur in groups associated in a striking manner with the four intrusive stocks of quartz-diorite which occupy the basins of Groom and Hassayampa creeks. of Lynx creeks. Sf BigbGg creeks and it's branches Rear EcCabe, and of Poland creek near Crown King. Brief descriptions Of the veins in these four areas and Sf the less important outlying veins are given.
 Near Mayer, on the left bank of Big bsg creek, is a considerable deposit sf onyx DaTtfie. small portions of which are of quality that renders it EItRble Sor a decorative stone. The sayx is extremely variable in color ana textRre. It is generally white CT pale green when fresh, but weath- szznR ha@ produced variations of col CT which give it most of its decorative vszze.
 The only permanent stream in the quadrangle is Agua Fria river, which throughout the year contains a mod crate amount of water. h the south ern half of the quadrangle desert con sitions prevail and water is to be had eaiy at widely scattered points, chief ly from wells- Beyond the small areas of alluvium along the streams the soils of the quadrangle are sparse and poor.
 This folio, which is No. 126 of the series, is for sale at 25 cents a copy. Application should be made to the Di- rector of the United States Geological Survey, Washington, D. C.
 C0UrIDCNHC CCTO