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Cole and Goodwin Mine (Sulfite Mine; Sulfite property; Arizona-Globe Copper Mine; Cole and Gibson property; Little Miami Mine), Lyons Canyon, Pinal Ranch, Pinal Ranch quadrangle, Pinal Mountains District, Pinal Mts, Gila Co., Arizona, USA

Latitude: 33°17'56"N
Longitude: 110°55'39"W
A former underground Cu-Pb-Au-Ag mine located in the center sec. 34, T1S, R14E (Pinal Ranch 7.5 minute topo map), 2½ miles SSE of the Gibson Mine, 5 miles W of Signal Peak, N side of Lyons Canyon, about 8 miles SW of Globe, and 2 miles E of the Gila/Pinal County line, on National Forest land. Produced 1908-1940. Operators included the Cole Development Co.; the Arizona Globe Copper Co.; and, P.J. Hickey. Additional names which apply to this property: Arizona-Globe Copper property; Little Miami Copper Co. property.

Mineralization is a deposit hosted in Algonkian (Precambrian) Pinal Schist. The deposit is a short, irregular shoot of vein matter formed by replacement of sheared sericite-schist in fracture breccia. The ore zone strikes N48E and dips 40-45NW. Variable widths were reported but average was 2-4 feet. The shear zone seems to be parallel in strike with the bedding of the schist but is probably slightly discordant in dip. Toward the SW, the oreshoot ends at a small offset in the shear zone which probably is caused by a minor pre-mineral crossfault. The offset segment is but slightly mineralized. Mineralization includes unspecified copper carbonates. Mineralization is associated with the regional NE-trending fracture system and NE granitic intrusives, both Early Tertiary in probable age.

Area structures include NE-trending shears and Schultze Granite dikes throughout the area. Precambrian Madera Diorite outcrops ½ mile E of the mine. The shear zone is parallel to the schist bedding-foliation, but has discordant dip to the SW. The ore ends in a minor pre-mineral cross fault. The offset segment is only slightly mineralized. Granite dikes parallel to the shear zone both ½ mile N and ½ mile S.

Workings include an inclined shaft said to be 480 feet deep with 700 feet of lateral development in 1919. Two or three drifts and some surface tunnels in 1915. Production was reported at 50,263 pounds of Cu (1908), and in 1939-1940 shipments of a few hundred tons of ore that yielded 32,000 pounds of Cu and 380 oz. Ag.


Ransome, F.L. (1903) Geology of the Globe Copper District, Arizona, USGS PP 12: 162.

Ransome, F.L. (1904) Globe Folio, Arizona: U.S. Geological Survey, Geologic Atlas of the United States, Folio no. 111, 17 p. [oversized], 6 sheets, scales 1:12,000 and 1:62,500. (see Areal Geology map & page 15).

Stevens, H.J. (1911) Copper Handbook, Vol. X: 1078 (see Little Miami Copper Mines).

Arizona Mining Journal (1919) November, 1919: 44.

A.I.M.E. Ore Deposits of the Western States (1933): 605.

Peterson, N.P. (1963), Geology of the Pinal Ranch quadrangle, USGS Bull. 1141-H: H13.

Niemuth, N.J. & K.A. Phillips (1992), Copper Oxide Resources, Arizona Department of Mines & Mineral Resources Open File Report 92-10: 7 (Table 1).

USGS Pinal Ranch Quadrangle map.

U.S. Bureau of Mines - Arizona Bureau of Geology and Mining Technology file data.

Arizona Department of Mineral Resources Arizona-Globe Copper Mine file.

Yale Peabody GNIS database (NOTE: this database is derived from USGS 1:24,000 topographic map data).

MRDS database Dep. ID #10104087, MRDS ID #M241216; and, Dep. ID #10283024, MAS ID #0040070148.

Mineral List


4 entries listed. 4 valid minerals.

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