Prior to the formation of the Vienna International Company in 1906 and their development until 1916 there is very little information available. Only minor production has been reported. A 1927 report mentions concentrates with 70% lead and 35 ounces of silver per ton had been milled. Vienna International completed a total 1,565 feet of development in 3 tunnels. Tunnel No.3 level contained a 90 foot raise, 125 foot shaft and 30 feet of drifting from the shaft bottom. Historical reports indicate that his may have been to locations where the ore that was milled and concentrates were derived from. Three prospective vein systems have been defined within the Vienna Mine Claims.
VIENNA PROPERTY - Idaho
History and Previous Exploration/Development Efforts
The Vienna Mine is located along the projection of the Coeur d’Alene Mining District (aka “Silver Belt”). Present exploration development and mining within the Silver Belt is edging eastward from the original discoveries at the Sunshine Mine past the Coeur, Galena and Caladay a projection of about 10 miles to the Vienna Mine. Here, the Vienna workings are 9 miles from the Sunshine Mine, 4 miles from the Galena Mine, and 3.4 miles from the Caladay Project. A new name has been coined for this eastward edging of exploration by major and junior precious metals companies ----“The Forgotten Corner of the Silver Valley, Idaho”.
The mineralized outcrop of the Vienna vein can be traced for 600 feet on the surface. Projections of this N80 W trending, vertical to 85 N dip can be inferred to give a strike length of an estimated 1,500 feet. The width of the vein increases from 6 feet at the surface to 15 feet in width at 300 foot level. The vein is characterized by oxidized sulfides in a siderite gangue and also contains tetrahedrite, galena, pyrite and arsenopyrite. Tetrahedrite is the dominant silver mineral in the Coeur d’Alene Mining District. Historical reports indicate that gold assays were found from the surface down to the 300 level. Tunnel No.1 values of 0.30 oz/ton Au, Tunnel No.2 0.20 oz/ton Au to 0.85 oz/ton Au with a high of 2.25 oz/ton Au and confirmed by dump samples of 0.68 oz/ton Au and 0.30 oz/ton Ag. Other sampling in Tunnel No.2 found values range from 0.14 to 0.19 oz/ton Au with a high of 1.20 oz/ton Au. Tunnel No.3 has been closed since 1926, but gold values in the 0.60 oz/ton Au range have been reported. An old report mentions an un-oxidized sample assayed 7.20 oz/ton Ag in the raise between tunnels 3 and 2. Silver values are low in the oxidized portion of the veins and this is typical elsewhere in the Silver Belt mines.
As the name implies the Cross Vein cuts N80 W trending toward Vienna Vein at N60 E and is exposed in tunnels 2 and 3. The vein ranges in width from 1.5 feet to 2 feet and is comprised of siderite with narrow stringers of tetrahedrite. A Cross Vein sample contained 0.025 oz/ton Au, 0.15 oz/ton Ag and 0.35 % Cu.
Exposure of the International Vein is located on the International Claim north of Tunnel No.2. A shaft and short tunnel here indicate some development. A recent sample from the old discovery cut contained 0.26 oz/ton Au, and 0.41 oz/ton Ag.
Other Vein Systems
Three other vein systems are inferred on the claim block. All three occurrences have been explored by short adits. Continued surface exploration mapping and sampling could reveal additional and important vein structures.
Proposed Future Exploration – Phase I
Phase I is a recommended program that would consist of implementing an orientation survey, for soil and rock geochemistry and geophysics, including Magnetometer/VLF, SP and IP Surveys for the express purpose of defining the known veins out along the strike of the veins and to attempt to ascertain if these mineralized structure continue to depth. To determine viable methodology of operations, geologic mapping and sample geochemistry under the recommended exploration plan would be carried out over the entire property utilizing early stage core drilling to define one or more veins. This proposed work is designed to accurately assess the property to determine if further work outlined in Phase II is necessary, and determine which techniques of data acquisition are appropriate for the Vienna property.
Orientation survey over surface of known mineralized zone and outcrops – Phase II
The proposed orientation survey would establish a working grid system, which will allow for accurate data acquisition, as well as provide the initial Geochemical and Geophysical data to determine which methodology is applicable; a) mapping; b) geochemical surveys; c) geophysical evaluation; d) detailed geologic mapping on surface and open underground rock units and structure including additional rock geochemistry testing; f) Soil geochemical testing of property; g) grid soil sample and assay 500 soil samples total distance of 10 line miles; Magnetometer /VLF over property; SP Survey over property; IP Survey over selected SP Lines of 5 line miles.