Sunset Mine (Sunset group; Gregory Mine; Gregory claim; MS 4581 Sunset claim; MS 4581 Consolation claim), Ray Mine area, Mineral Creek District (Ray District), Dripping Spring Mts, Pinal Co., Arizona, USA
A former underground Au-Ag-Cu mine located on 3 patented claims (Sunset #1, Sunset #4 Fraction, & the Sunset #5), in sec. 12, T3S, R13E, about 1 mile NNE of the Ray Mine, and about 1¾ miles SW of Scott Mountain. Produced 1933-1956. Past operators included Mr. William Gregory; A.E. Jones; Jones and R.V. Boggs; the Sunset Mining Co.; V.A. Gilbert; R.R. Leary, and W.O. Kay.
Photo: D Lapham
Mineralization is a tabular ore body hosted in Troy Quartzite. Regional structures are Pinal Schist striking WNW, and dipping 20SW. Some Mesozoic basalt porphyry (Gq 1021). The N-trending Broken Hill fault is on the west side of the claim group. The mineralization is probably related to Cretaceous-Paleozoic intrusions in the area, such as at the Ray Mine, 1 mile SW.
ReferencesUSGS Map GQ 1021 (1971).
Bureau of Land Management District Sheet #634.
U.S. Bureau of Mines - Arizona Bureau of Geology and Mining Technology Production file data.
USGS Sonora Quadrangle map.
Arizona Department of Mineral Resources Sunset group file.
MRDS database Dep. ID #10048306, MRDS ID #M899868; and Dep. ID #10137896, MAS ID #0040210806.
No entries listed.
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