Florence, AZ Curis Resources


Curis Resources Ltd. (TSX: CUV) is a public mineral development company associated with Hunter Dickinson Inc. (HDI). It is focused on the acquisition, development and operation of high-quality next generation copper properties in progressive jurisdictions around the world. Curis holds a 100% interest in Florence Copper, an advanced stage in-situ copper recovery project in central Arizona.

Extensive geological, engineering and pilot ISCR testwork undertaken by previous owners indicate that Florence Copper has the potential to be a near-term, low-cost copper producer. Road, rail, power and water infrastructure is all located in close proximity to the property, which also features on-site administration offices and production study facilities.

Florence Copper is an initiative of Curis Resources Ltd. to permit, construct and operate and in-situ copper recovery (ISCR) operation in Florence, Arizona.

The advanced stage development, located in central Arizona within the municipal boundaries of the Town of Florence, was acquired by Curis in February 2010. Curis’ landholdings total 1,342-acres and include 1,182 acres of patented claims and 160 acres of state mineral leases. The company is working with residents and officials from the Town of Florence and relevant State and Federal agencies to design, construct and operate a world-class, greenfield ISCR project. 

The Florence Copper property contains a 429 million ton measured and indicated copper oxide resource at a 0.05% cutoff, grading 0.331% copper (Cu) and containing 2.84 billion lb of copper. The deposit lies between 400 and 800 feet below surface.

Due to the presence of soluble copper oxide mineralization, extensively fractured bedrock and groundwater conditions that allow for both copper recovery and aquifer protection, the Florence Copper site is highly amenable to in-situ copper recovery methods, and has excellent potential to become a world-class ISCR operation.

Copper within the deposit occurs as fine grained mineralization on the fractures of the rock. Removal of the copper by ISCR methods will not in any appreciable way alter the volume of material in the ground or cause any surface disturbance or subsidence. 

1960 American Smelting & Refining Co. (ASARCO) undertakes early exploration
1970 Continental Oil Company (Conoco) records first copper intercepts
1972 Conoco constructs two 700′ shafts and one mile of cross-cuts
Test mines 50,000 tons of ore
On-site metallurgical testing via milling, flotation and vat leaching plant
1992-1996 Acquired by Magma Copper Company
Prefeasibility studies to determine optimum mining method
Metallurgical and materials property testing
Focus shifts to in-situ copper recovery (ISCR) production and SX/EW processing
1996-1998 Magma acquired by BHP Copper (Florence Copper, Inc.)
Geological, hydrogeological, metallurgical & hydrochemical test work
ISCR pilot test initiated – including installation of 67 injection, production and monitoring wells
1999 BHP Copper completed Pre-Feasibility Study
Measured & Indicated resource (429 million tons)
Major environmental permits in place for ISCR production
2000 Project deferred due to low metal prices
Property acquired by Merrill Ranch Investments LLC
2009 HDI acquires Florence Copper patented land
2010 HDI acquires state mineral leases
Curis Resources Ltd. formed and senior project team assembled to advance the Florence Copper project toward development
Curis conducts community outreach
1996-2010 Groundwater quality monitored every three months
Results demonstrate no impairment of water quality from historic ISCR activities

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