Blind Gold Property

The Blind Gold Property is Dakota Territory’s flagship property and is a target for both Tertiary-aged and Iron-formation gold mineralization.  The Blind Gold Property is located approximately 4 miles northwest and on structural trend with the Homestake Gold Mine that, having produced approximately 40 million ounces of gold over its 125-year mine-life, is historically the largest iron-formation-hosted gold deposit in the world.

> Technical Report – Blind Gold Project June 2013

In the 1980′s, Homestake Mining Company undertook a $70 million exploration program managed by Richard Bachman, president and chief executive officer of Dakota Territory that was focused primarily on the search for a repeat of the Homestake Mine.  For the first time, this program successfully demonstrated the repeatability of Homestake iron-formation hosted gold deposits within a structural corridor extending northwest of the mine.  Significant new gold mineralization was discovered by surface drilling approximately one mile down plunge from the surface expression of the Maitland fold structure at a depth of approximately 6,600 feet below surface.  To provide access for underground exploration, development and mining, Homestake undertook the excavation of a three mile long tunnel from the mine’s 6800 ft level called the “North Drift”.  As the North Drift was being advanced from the mine, two surface core holes identified the next in the series of repeating fold structures to the north called the “False Bottom” fold structure, with classic arsenopyrite-chlorite-gold mineralization intersected below the Maitland Mine Area at a depth of approximately 5600 feet below the surface. The up-plunge projection of this mineralization extends to Dakota Territory’s Blind Gold Property under the cover of approximately 400 feet of the younger Paleozoic Sedimentary & Tertiary Intrusive rocks.

Isometric View, Homestake Corridor

In addition to the exploration potential for gold hosted in Homestake iron-formation, the Blind Gold Property is also located just north of the Maitland Mine. The Maitland Mine produced both gold and silver from a Tertiary-age replacement deposit typical of the District, with mineralization hosted in the Cambrian Deadwood formation.  The Deadwood formation was the preferred host for tertiary-age gold mineralization in the district and the Maitland Mine was the last in the string of nine mines that produced ores from the Deadwood formation host along a well defined structural trend. The Maitland Mine is located at the point where the Deadwood formation disappears under the cover of the Paha Sapa Limestone, which also hosts gold deposits within the District but to a lesser degree.

Plan View, Maintland Mine and Blind Gold Property Area

After Heidt, 1977 & Bachman, 1992 Spokane SME

The formation of Tertiary-aged gold-silver replacement deposits is generally dependent on fault and fracture structures necessary to the transportation of mineralizing fluids and proximity to the preferential intrusive bodies, both of which are present at the Blind Gold Property. Tertiary-age gold mineralization is evidenced across the property by numerous mapped prospect workings dating from the turn of the century in the Paha Sapa Limestone, Phonolite intrusive and Deadwood formation where it outcrops at the southwest corner of the property.  The Blind Gold Property is a high caliber exploration target for the on-trend continuation of Tertiary aged gold-silver replacement deposits in the preferred Deadwood formation host under the cover of the Paha Sapa limestone.

Dakota Territory’s exploration focus is on the search for a repeat of a Homestake Iron-formation gold deposit on the Blind Gold Property, primarily because of the size and grade potential of a deposit of this type and resulting economic opportunity associated with such a discovery.  While exploration for other gold deposit types is a secondary priority, the exploration program will be opportunistic as each hole drilled through the overlying cover rock holds additional potential for the discovery of Tertiary-aged gold-silver replacement deposits.

Cross View, Blind Gold Property
After Heidt, 1977

After Heidt, 1977