Summary

Mine Type	Stockpile
Status	Active
Commodities	Gold
Mining Method	Truck & Shovel / Loader
Production Start	...
Snapshot	The Bonanza Mine property includes the Harquahala and Golden Eagle mines. The project has significant underground workings. Mined rock and tailings from previous operations represent an additional potential resource. Phase Two includes a package where potentially identified 150,000 – 300,000 oz of Au in defined underground targets in and around the old Harquahala mine with significant upside potential. The Bonanza Mine commenced production on June 3, 2021. According to the Mine Safety and Health Administration (MSHA), the mine status is Intermittent. PID 1883 Bonanza Mine production numbers are not publicly available. The current operator, RMC Mining Development, LLC, is a private company.

Deposit type

• Tailings
• Vein / narrow vein

Summary:

The mineralization in the Harquahala district is varied and complex. Gold, silver, copper, lead, and zinc occur in pockety deposits, large and small, usually associated with iron oxides and gypsum where oxidized, and with auriferous pyrite in depth. Often the deposits occur in brecciated, lenticular quartz and jasper veins along shear zones and faults. The host rocks may be any of the Precambrian, Paleozoic, or Mesozoic rocks. Closely associated are diabase and aplite or quartz dikes and the source of the mineralization is believed to be the granitic intrusive. Spotty tungsten mineralization is associated with some discontinuous quartz veins and lenses in gneiss and limestone in scattered localities. Seams and irregular replacement bodies of mixed manganese and iron oxides occur locally in the metamorphosed sediments. The most prominent ore deposits, at the Bonanaza (Harquahala) and Gold Eagle mines, occur in strongly deformed and faulted metamorphosed Paleozoic sediments intruded by an elongated body of quartz monzonite. The rich, high-grade, but pockety shoots of gold ore in the oxidized zone give way to auriferous pyrite with some base metal sulfides in fracture zones in depth. The weathering and erosion of these deposits created gold placers in the gulches of the Little Harquahala Mountains close to the deposits. Titaniferous magnetite sands have been explored on the western peneplain of the Little Harquahala Mountains (T.4 N., R. 14 W.) but have not been exploited (Harrer, 1964), and marble and quartzite have been quarried intermittently for many years from the Paleozoic metamorphosed beds in the Harquahala Mountains.

Mining Methods

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Comminution

Crushers and Mills

Processing

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Commodity Production

Commodity	Units	2021
Gold	oz	....