Latitude: 31°45'32"N
Longitude: 110°46'36"W
‡Ref.: Schrader, F.C. & J.M. Hill (1915), Mineral deposits of the Santa Rita and Patagonia Mountains, Arizona, USGS Bull. 582: 153, 155.
Wilson, E.D. (1927), Arizona gold placers, 2nd. ed. (revised), University of Arizona Bull. 124: 36, 40.
Drewes, Harald (1970) Structural control of geochemical anomalies in the Greaterville mining district, southeast of Tucson: U.S. Geological Survey Bulletin 1312-A, p. A1-A49, 1 sheet, scale 1:24,000.
Drewes, H.D. (1971) Geologic map of the Sahuarita quadrangle, southeast of Tucson, Pima County, Arizona: U.S. Geological Survey Miscellaneous Geologic Investigations Map I-613, 1 sheet, scale 1:48,000.
Keith, Stanton B. (1974), Arizona Bureau of Geology & Mineral Technology, Geological Survey Branch Bull. 189, Index of Mining Properties in Pima County, Arizona: 121 (Table 4).
Phillips, K.A. (1987), Arizona Industrial Minerals, 2nd. Edition, Arizona Department of Mines & Minerals Mineral Report 4, 185 pp.
Peirce, H. Wesley (1990), Arizona Geological Survey Industrial Minerals card file.
USGS Sahuartita Quadrangle topo map.
Arizona Bureau of Mines file data.
MRDS database Dep. ID file #10039495, MRDS ID #M050167; and, Dep. ID #10186069, MAS ID #0040190368.
A former small underground Pb-Zn-Ag-Cu-Au-Baryte mine located in the NE ¼ sec. 26, T.19S., R.15E., near the head of Hughes Gulch and 1½ miles southwest of Greaterville, west of Granite Mountain, in Nigger Gulch, at an elevation of 5,840 feet, 37 miles SE of Tucson. Discovered 1883. Owned at times, or in part, by the Quebec Consolidated Mining Co.; and, Hurlbut & Christman.
Mineralization is a well-banded, iron-stained, quartz-calcite-barite 4 foot wide NW-SE vein containing irregular pockets of partially oxidized sulfides along a Tertiary quartz-latite stock intruding Cretaceous sedimentary formations. The vein is in coarse, dark porphyritic granite. The vein is about vertical. Host rock units include Apache CAnyon Formation and the Willow Canyon Formation. Gold content tends to increase in calcite-baryte gangue.
Local structures include thrust and normal faulting, fracture zones, homoclinal. Regional trends include tilting and broad open folds in the south and extensive faulting in the north.
Workings include a 50 foot deep shaft and a 100 foot tunnel with a 50 foot upraise from the breast to the surface, and a 20 foot deep winze to a 50 foot drift and a 25 foot deep winze at the end of the drift. Worked in the 1880's and sporadically up to 1940, producing a small tonnage of Pb-Ag ore with minor Au & Cu. Ore shipped inj the early days is reported to have averaged 100 oz. Ag/T and a little gold.
Mineral List
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