All of these holes intersected anomalous to ore grade gold and copper mineralization.
The Emigrant Mining District is centered on one of several intrusive centers localized on Cooke City Structural Zone at its intersection with the local Mill Creek fault.
This mountain building event also resulted in the emplacement of early Tertiary intrusive stocks and the extrusion of voluminous volcanic rock sequences of the Absaroka-Gallatin volcanic field along reactivated structural zones of Precambrian crustal weakness.
Analysis of the work completed to date indicates that ten highly mineralized breccia-pipes are part of the same mineralization event and are zoned from a molybdenum rich core through copper gold to copper silver on the outer edges of the central area. is focused on the exploration and development of several targets within a fifteen square kilometer (six square mile) area, located in the core of the mineralized and intensely altered Emigrant Mining District, South-central Montana.
As many as ten highly mineralized breccia-pipes and two porphyry targets exist within the property boundary and have been variously explored by historical drilling including 12,874 meters (42,237 feet) in 83 holes, induced polarization geophysical surveys, rock chip sampling and geologic and alteration mapping.
During the period 1864 to 1935 an estimated 40,000 ounces of gold was produced dominantly from placer operations.
The most recent phase of modern exploration started in 1990 when Kennecott drilled six helicopter supported core holes on the south flank of DUV Ridge.
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