Monarch group, Union Pass Mining District (Katherine Mining District), Oatman Mining District, Black Mountains, Mohave County, Arizona, USAi

Regional Level Types
Monarch group	Group of Claims
Union Pass Mining District (Katherine Mining District)	Mining District
Oatman Mining District	Mining District
Black Mountains	Mountain Range
Mohave County	County
Arizona	State
USA	Country

Monarch property. The Monarch property comprises a group of six claims situated about 3 miles southeast of Union Pass, on or near the crest of the range, on open ground, at elevations of 3,600 to 3,700 feet. It is owned by J. S. Withers and Robert Brannack, of Kingman. It was discovered in 1904. The developments consist mainly of a shaft 60 feet deep, about all in granite.

The property lies just south of the point where the mineralized contact zone extending eastward from the Expansion property reaches the crest of the range and, curving to the south, loses its regularity and unity and is less well defined, portions of it occurring on either side of the crest. The country rock is the pre-Cambrian granite, with the usual intrusive irregularly present.

The shaft is sunk on a lode which seems to be a southward extension of a part of the Mammoth lode. Its upper 30 feet exposes a 10-foot vein composed mostly of quartz and light-colored clayey gouge with altered rock and calcite. It is stained in spots with malachite. The vein dips steeply to the east, with quartz forming the " foot wall," from which it is separated by 5 inches of red clay gouge, and granite forming the hanging wall. The ore is in streaks but a few inches in width, contained in the vein. It is reported to average about $40 in gold and $10 in silver to the ton, and contains a trace of copper. Below a depth of 30 feet, however, though calcite and quartz continue on the hanging-wall side, the vein becomes lean and consists mostly of argillaceous material.