Maudina Mine (Campo Bonito gp; Bonito Mines; Other claims; Maudina claims/property), Campo Bonito Mines, Campo Bonito, Oracle District (Control District; Old Hat District; Santa Catalina District), Santa Catalina Mts, Pinal Co., Arizona, USA

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A W-Au-Ag-Pb-Mo-Cu mine (originally a gold property) located in sec. 20, T10S, R16E, on 29 claims about 1 mile SE of Campo Bonito at about 5,100 feet of altitude, on National Forest land. Operated 1908-1912 and 1915-1916. Owned in part, or at times, by the Cody-Dyer Arizona Mining and Milling Co. (1908 thru 1916); and, Campo Bonito Tungsten Mines. Owned by Edward H. Molson. Also known as/designated: Williams Tunsten; Cody tunnel; Campo Bonito Tungsten property; Unpatented claims MS 4250; the Maudina MS 4250 unpatented claim; Patented claims MS 1836; Morning Star MS 1836 patented claim; and Gold Bug. Claims extend into N½NW¼ sec. 20, NE¼NE¼ of sec. 19 and into sec. 12, secs. 17, 18 and 21.

Mineralization is quartz veins in granite with tungsten minerals. The principal oreshoot is located in the southern portion of a vertical fault zone that strikes parallel to the Mogul fault. Related structures are block faulting trending NNW; regional trends: post-Cretaceous pre-Pliocene thrusts and high angle normal and reverse faults. Cretaceous - Tertiary intrusives and consequent faulting; Mogul fault zone. Host rock units are the Abrigo Limestone, recrystallized to marble, and the Escabrosa Limestone. An associated rock unit is the Rice Peak Granodiorite Porphyry. Alteration is silicification of Escabrosa Limestone, restricted to faults and fractures related to the Mogul Fault. Ore control was fault block of Escabrosa Limestone adjacent to the Mogul Fault.

Prevailing rocks consist of Eastward-dipping sandstone, quartzite, impure limestone and shale of the Apache group. Some 1,200 feet farther North is the Mogul fault which strikes West to NW, dips steeply southward, and brings Apache and Paleozoic beds on the south in contact with Precambrian granite on the north. Earlier than this fault are diorite-porphyry dikes of northward strike and eastward dip. Associated with them in the granite area are quartz veins with scheelite.

Workings include a 175 foot deep vertical shaft and an adit tunnel.

Mineral List

Calcite Cerussite Chalcopyrite

Covellite Dolomite Galena

Gold Pyrite Scheelite

Vanadinite Wulfenite

11 entries listed. 11 valid minerals.

References