LONE TREE COMPLEX
i-80 holds a 100% interest in the Lone Tree property, located within the Battle Mountain Trend. Lone Tree is a past-producing mine with historic production of approximately 4.2 million ounces of gold and is host to substantial processing infrastructure including a permitted whole-ore autoclave, leach pad and CIC circuit, and a floatation circuit. The Lone Tree Complex could become the hub of i-80’s Nevada operations and provides the Company with a genuine opportunity to become a stand-alone producer with facilities capable of processing several ore types, including refractory ore from Granite Creek, the Ruby Hill Complex and McCoy-Cove.
The total land package of the Lone Tree property consists of approximately 12,000 acres. The property contains significant gold resources with the known mineralized zones remaining open for expansion. However, the Lone Tree open pit project has a variety of financial, technical, environmental and social issues to be worked through. It is expected that the project will likely remain deferred for another decade. Management believes new technologies and other solutions may become available in the future to allow the Company to unlock the value of this large open pit project.
QUICK FACTS
OWNERSHIP
100% i-80 Gold Corp
LOCATION
Battle Mountain Trend – Northern Nevada
STATUS
Active heap leach pad (currently processing oxide ore from Granite Creek)
MINING STYLE
Centralized Milling Facility to Process Several Ore Types
Open-Pit & Underground Potential
M&I MINERAL RESOURCES
7,200 kt @ 1.77 g/t Au for 410 koz
INFERRED MINERAL RESOURCES
50,700 kt @ 1.69 g/t Au for 2,764 koz
NEXT UPDATE
Q1-2025 – Mineral Resource Estimate
Q3-2025 – Autoclave Refurbishment Engineering Study (Class 3)
TECHNICAL REPORTS
GEOLOGY
Lone Tree has historically been classified as an Eocene distal-disseminated system. Mineralization is largely structurally controlled along the N-S striking Powerline fault. Additionally, mineralization is located between the Roberts Mountain and Golconda thrusts in siliciclastic rocks of the Ordovician Valmy Formation and in the Pennsylvanian-Permian Battle Mountain and Edna Mountain Formations, and above the Golconda thrust in siliciclastic and carbonate rocks of the Mississippian to Permian Havallah sequence. Mineralization is also hosted by Eocene rhyolitic dikes, although no large intrusive body has been delineated. The gold is associated with sericitic and argillic alteration of the siliciclastic rocks and dikes and with decarbonatization and Fe carbonate alteration of the carbonate-bearing units, as well as in Fe-As sulfide and fine grained quartz alteration of all rock types. Oxidation affects 30-45% of the deposit, penetrating into the stratigraphy along numerous steeply dipping north-south, east-west, and north-northeast–south-southwest structures.
| Title | Address | Description |
|---|---|---|
LONE TREE | RQHG+RX Valmy, NV, USA | |
BUFFALO MOUNTAIN | QP75+WH Valmy, NV, USA |
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