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Show custer county IS PROMISING FIELD j I Ore deposits in the northwi stern ' part of Custer county, Idaho, are de-' de-' scribed by J. B. Umpleby in Bulletin 539 of the United States geological ! survey, department of the interior, a : number of copies of which are still I available. The area studied, which ' comprises the Loon Creek, Yankee I Fork and Bay Horse mining districts. I includes several promising ore depos-!! depos-!! its and a few mines where a consid- crable tonnage has been blocked out for a number of years, await inc more advantageous transportation facilities. It Is believed, however, that under recent re-cent high prices for metals much of this ore raiiiht be handled at a good profit The ore deposits comprise gold placers plac-ers and lodes carrying gold -silver, gold-copper and lead-silver ores. In most of ihe deposits the ore is of excellent ex-cellent grade. Northwestern Custer county, according accord-ing to Mr. Cmpleby, is certain to produce pro-duce larjje amounts Of silver, lead, copper cop-per and gold in the future, if only from deposits now developed The deposits de-posits of the Bay Horse district are by no means exhausted, and in some, a considerable tdjShage is actually blocked out. Many others are inadequately inade-quately developed, and much of the intermediate terrtiory is comparatively comparative-ly unprospeeted. In the Yankee Fork district little ore is in sight, and any considerable future production from the shoots now recognized is problematic, proble-matic, but in a heavily timbered area where Mich bonanza deposits have been found there is ever the probability probabil-ity of new discoveries. One noteworthy discovery Is known to have been made since the report was written The Ejpon Creek distriet contains gold placers that will probably prob-ably be worked in the near future. In addition to these, there are gold-copper veins, one of which has been explored ex-plored to a depth of 1000 feet, and throughout this distriet the ore has ranged In value from 2r to $f0 to the ton. with no evidence of impoverishment impoverish-ment with depth The area of dolo-raitic dolo-raitic limestone near the head of Deer creek is also thought to be n promis-inc promis-inc field in which to prospect for lead silver deposits. It is hihh prob.ible ihat in a rough country like northwestern Custer county new deposits will be found when mining apain becomes active. Under normal metal prices such activity ac-tivity could scarcely be expected to lire-cede the advent of a railroad, for the larger proper) i-s are held by companies com-panies which for many years have shown no inclination to rob the known deposits. At present, however, there ; Is believed to be abundant justitication for prospecting and reasonable exploitation. |