Hatch Mine (Harvey Hatcher Mine; Hatch group), Signal Peak area, Black Hills, Mammoth District, Pinal Co., Arizona, USA
Latitude: 32°42'3"N
Longitude: 110°44'21"W
A group of Cu-Au-Ag-Mn claims and former surface and underground mine located on 56 unpatented claims in the SW¼ sec. 29, TS, R16E (and adjacent portions of secs. 30, 31 & 32)(Mammoth 7.5 minute topo map), about 1¼ miles due S of Signal Peak, about 1 mile N of Tucson Wash and about 6¼ miles WSW of Mammoth, on state land. Discovered in 1959 by Mr. Harvey Hatcher. Produced in 1960. Owned and operated by Harvey Hatcher and Ardith Long (1960-1961).
Mineralization is a vein deposit in quartz monzonite with a tabular ore body hosted in the Cloudburst Formation, and include scattered manganese outcrops. The vein is 0.38 meters wide. An associated rock unit is an unnamed rhyolite. Includes secondary copper minerals. Reports from ADMR mention quartz monzonite porphyry with a few feet of overburden.
Area structures include rhyolite intrusives ¼ mile SE and ¼ mile SW of the mine area. Strike of the volcanics is N to W with an E dip. The San Manuel Fault, striking NW to SE, is ½ mile north of the mine.
Workings include surface exploration by means of open cuts, trenches, and shallow shafts.
References
Creasey, S.C. (1967) General Geology of the Mammoth Quadrangle, Pinal County, Arizona, USGS Bulletin 1218, Plate 1.
Niemuth, N.J. & K.A. Phillips (1992), Copper Oxide Resources, Arizona Department of Mines & Mineral Resources Open File Report 92-10: 14 (Table 1).
U.S. Bureau of Mines - Arizona Bureau of Geology and Mining Technology production file data.
U.S. Bureau of Mines file data cluster #523.
Arizona Department of Mineral Resources Hatch Group file.
USGS Mammoth Quadrangle map.
MRDS database Dep ID #10088904, MRDS ID #M899859; and Dep. ID #10210701, MAS ID #0040210520.
Mineral List
4 entries listed. 4 valid minerals.
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