The Ketchikan mining news., 1907-01-18
HADLEY

luC OIUWu'AloSNd Ni1lCItCl oIIS
 Mines Are Assured Money
 Makers
 For the past two years, or more public interest and speculation as tt the probable successful outcome o1 copper mining endeavor in the Ketch' ikan district has been centered mainly on the operations of the Brown Alasks Company at Hadley, Prince of Vale. Island, and the properties in course o1 development in that immediate vicin' ity. This, because of the compara. lively much larger amount of capital which was being, and has been, ex. pended in the development of its Mamie Mine, and the erection and equipment of new and thoroughly up-to-date shelter of 800 tons daily capacity. The Mining News is pleased in being able to truthfully announce that the public interest centered ir that enterprise is now abundantly sat- isfied by an issue so complete as to forever set at rest any doubts which may have been entertained as to the very great value of the mineral de- posits of this district.
 The Brown Alaska company's Mamie mine is situate little over mile from the beach at Hadley, where the shelter is located, and with which it is connected by surface tram road and Case aerial tram. Its mining property at this point embraces six locations-Mamie Nos. 1 and }, Doo- little Nos. l and ?, Kensington and Middlesex-all patented. The ore is chalcopyrite, in one case contained in mixed gangue of magnetic, chlorite, hornblende, etc., and in the other case in silicious gangue. These ores occur in lenticular depos- it's, the trend of the formation being about N. w. 28 deg. E. These lenses vary in size, so far as shown by the development, from 50 to 175 feet in length, 15 to B feet in width, and from F to 40 feet in vertical depth. Where the ore is silicious the deposits are largest. The formation at one time was evidently limestone, which was later shattered by intrusive dikes of diorite, porphyry and felcites, which also had the effect to alter the char acter of the rock near their contact. These dikes have an important bear ing on the ore deposits, as the latter follow along their strike and occur in close proximity to them.
 At the Mamie mine fully one mile of development work has been accom- plished from the main tunnels and shafts, besides three-quarters of a mile of diamond drill work. No. 1, the upper tunnel, is 265 feet in length, Ia part of the way in ore), an average of 60 feet below the surface, with 177 feet of crosscuts and 16O feet of raises. No. tunnel is across the strike of the lenses, and 425 feet in length, with a number of cross-cuts, drifts and raises. Preston tunnel is at right angle to the strike, 360 feet southeast of No. ?, and is 105 feet long, with 100 feet o1 lateral development. The main shaft is down 300 feet from the surface, and F feet below the level of No. } tun. nel, with cross-cuts, drifts and raises, one of the latter connecting with No. } tunnel workings. About 45, GOO tons of ore have been mined from these workings and sent to the shelter dur. ing the past two years.
 The mine equipment consists of one straight line air compressor witt capacity for driving seven power drills, and one of 5-drill capacity; one double-drum, double-cylinder hois1 12x16, one single-drum hoist 7x10, ant one 5x5, two boilers 80 and 100 horse power, respectively, and one No. Cameron sinking pump. The diamond drill is of 500 feet capacity, and the machine drills are sufficient for , daily output of 200 tons.
 The Case aerial tramway has pres ent capacity for carrying POO ton' daily, but can be increased to 500 tom by simply adding to the number O buckets as they may be required. Int ore bins at the mine and smelter arr of the capacity of 1000 tons each.
 The mine buildings consist of thu compressor house-the upper stor. being utilized as change room fol the miners-boarding house, bunl house-the two supplying accommoda tions for 60 men-offices with sleeping rooms, and an assay office.
 The assay values of the ores average from 2.5 to 3.5 per cent copper, O. oz. gold and 3 oz. silver.
 A change in the general manage ment of the company's mines wa made the first of the year, Mir. J. L Parker having resigned and Mir. N o. Lawton being appointed his sue cessor. Mir. Lawton is a graduate o the Michigan Mining School, iron which has been graduated many of tn ablest mine managers of the West and that he will fill the billet witt credit to himself and to the advantage of the company is reasonably wei assured.
 The Sme1ter. which. as has hpe1