Mohave County miner and our mineral wealth., 1921-05-06
Mining Becomes More Active in County
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(COnClnueQ CTOIu T age
 ing has taken an option on the Pro- basco-Burt group of claims located about 4OOO feet from the Cold Chain property. The Probasco-Burt group carries vein 80 feet wide at surface that is said to assay from S4 to $40 gold a ton.. At depth of 8 feet the vein is said to assay $44 gold a ton across a breadth of feet, The transfer of the property to MT. LOT ing will be followed, it is believed, by the opening of paying mine sim liar to his famous Carson Hill mine on the Mother Lode of California. It is said that a shaft 500 feet deep is to be sunk by the Loring interests at the conclusion of the examination of the property now being made.
 At the Gold Chain property hoist and compressor have of late been in stalled with a view to mine develop ment at depth. A two-compartment shaft is now being sunk at a point 125 feet below the tunnel level to tap, on it's dip, the big vein exposed at surface. The massive uplift of the vein is fully 40 feet wide and is es- timated to carry approximately 10O,- 900 tons of ore that can be broken and milled at a profit. A recent sampling of the wide sections of this outcrop gave an assay return of from $5.e0 to $33.60 gold and from $2 to $16.32 silver ton. Development work is being done under the advis- ory supervision of Messrs. Shank and Shanklin, we'll known mining engi- neers with headquarters in San Fran cisco, and is in direct charge of F. C. Nourse. Mir. Nourse was formerly Tn charge of number of mines on the California Mother Lode. ''-~'@'
 Shaft work is we'll under way at the Katherine Extension property and is being expedited by the hoisting and compressor plants that were recently installed. The acreage lies between the Gold Chain and Katherine estates and is on the strike of the rich Kath- erine Assure. The objective is depth of 200 feet, where the contln- nation of the Katherine vein is to be crosscut and developed. The kath. erine Assure is the Mother lode or the district and is considered to have mine making possibilities similar to those of the Mother lode of Califor- mia. ,.
 The fact that pay ore has been opened in the Katherine mine Tn prox- imitv to the Katherine Extension property adds largely to the value ot the latter as inning proposition: IL also adds to the value of the Gold Chain. as the continuation of the Katherine vein extends on beyond the endline of the Katherine Extension in- to Cold Chain property. Charles N' Miller of San Francisco, who is in charge of the Morington placer pro. feet in the Feather River country or California is backing the Katherine Extension venture. Development work is in charge of Sam Brethour' formerly of Cripple Creek, Colorado and Charles Sherman, a well known Arizona mining man.
 In the Katherine mine all Of the headings and crosscuts on the four levels and the raises between them are in nay ore. The tonnage at present blocked out has value well in excess of 5000 ,0OO.00. The tonnage and value of the reserve increases daily as the drifts, cuts and raises are ex- tended. At a recent meeting of the Katherine stockholders in Kingman, plans were made to finance large