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Show )EVELOPMENT WORK IN PROGRESS j ,IT 0. K. MINE IN BEAVER LAKE DISTRICT ! The O. K. Mine, another of west-rn west-rn Beaver county's early-day pro-ucers, pro-ucers, owned by Theodore Kron-olm, Kron-olm, is being further developed nd operated today by Jesse R Hilars and associates. Mr. Villara mining engineer and consultant ith extensive knowledge and ex-erience ex-erience in mining operations in lontana, Idaho and other north-est north-est states, became interested in le O. K. group of faur mining laima after investigating many eaver county properties. In the Beaver Lake mining dist-ct dist-ct 12 miles northwest of Milford 'ie O. K. group, part of the Beaver ake mining district, lies in an en- rely igneous, quartz-monzonite r laccolith ore body. The mon-snite mon-snite is bordered on the north and est by Talisman quartzite of the ennsylvania age. The mine first ' as opened along a fissure vein riking about N 80 deg. west, and ipping to the north at an angle f about 60 degrees. Crossing the main east-west fis-i fis-i ire at various angles are subsid-I subsid-I ,ry fissures and bands, some of f hich form sheer zones into which ineral has been introduced form-5 form-5 ,g large "pipes" or "chimneys" of .-e. One of these chimneys, de-;loped de-;loped many years ago, gave up I rge tonnages of good to high-I high-I cade ore. The old stope where this i-r -e was mined has a cross-section J" about 40x70 feet and nearly 100 feet in hieght, all timbered in excellent ex-cellent condition. This ore is reported re-ported to have been more than 40 per cent copper. At the top and along the sides of this stope are several bodies of good to high-grade copper ore in veinlets and stringers according to Mr. Villars. The Milford smelter was originally origi-nally built, according to local realtor real-tor D. E. Kirk, to handle ores from the O. K. In 1903 13 cars of ore from the O. K. were shipped over the entire United States, bearing banners labeling it as Beaver coun-I coun-I ty ore, and placed on exhibition in several foreign countries, before being returned to Milford and worked through the Milford smelter. smel-ter. This was "the most beautiful ore ever mined," according to local old-timers, and ran 45 to 50 per cent copper. East of this old pipe the present pres-ent operators have opened a large chimney of pegmatic quartz reaching reach-ing from the surface down to the 400 level and below. This quartz is of low mineral content, but has a width on the 300 level of about 35 feet in a north-south direction, and has been crosscut to the east for over 50 feet. On the surface, this quartz outcrop has a general diameter di-ameter of 50 to 60 feet, but its size on the 200 and 400 levels. The broken quartz in the old stope (Continued on Page Five) j .. 7! Two riw i U hout hoax and mina ntran at th O. K. t HERE'S MORE ABOUT 0. K. MINE (Continued from Page One) alongside this quartz chimney, is believed by Mr. Villars to be the sheared and broken portion pf this quartz chimney lying just to the west of the main chimney. On the 400 level is a strong south-dipping fault that culs of: the downward extension of the main ore chimney, the fault move-j ment apparently being a component I of the normal downward displacement displace-ment on the upper or hanging I side of the fault, and a side thrust to the west on the upper or hanging hang-ing side of the fault. Some excellent excel-lent values are reported in a winze , below water level below the 400. At the bottom or a 25-foot winze on the 200 level, east of the old incline in-cline shaft, a general sample assayed as-sayed 3.62 per cent copper. The extent of this ore body is not known. Near the west end of the north crosscut on the 300 level is a body of impregnated sulphides carrying copper for a width of 30 feet averaging about 3 per cent in copper. West of the old big stop is a mineral zone crossing the main crosscut on the 200 level, consisting of altered monzonite carrying considerable con-siderable quartz, carrying sufficient value to constitute low-grade milling mill-ing ore. ' This same ore zone has a width of 40 feet on the 300 level and 55 feet on the 200 level. The entire central portion of the O. K. is faulted, sheared and greatly disturbed, and both ore-bearing ore-bearing chimneys have been so broken and shifted of moved by minor lines and planes of movement move-ment that the main central cores are difficult to locate at great depths. The heavy sulphides found in the 100 foot level indicate a deep ore zone, according to Mr. Villars, Vil-lars, and core drilling operations to block out the ore bodies are scheduled sched-uled for the summer of 1946. It Ms reported that up to 1902 the O. K. produced 1145 tons of copper ore averaging 40 per cent copper, giving returns of $95,000. A single shipment of 285 tons gave smelter returns of $3.80 per ton in gold and 7.5 oz per ton in silver in addition to 40 per cent copper. Total production to 1907 was more than $100,000. No records are available covering the period from 1907 to 1940. The Villars interest have been engaged in development work, rather than production, however some shipments in the summer of 1945 averaged 2i to 7.6 per cent copper, with traces of gold and silver. Employment at the mine has varied from three to nine men, with plans completed for more extensive exten-sive development now that miners are again becoming available on the labor market. Immediate plans include sinking the winz another 50 feet into the ore body, and diamond drilling programs on the 200 and 300 foot levels. |