LONE TREE PLANT
i-80 holds a 100% interest in the Lone Tree property, located within the Battle Mountain Trend. The Lone Tree Plant is currently non-operational and a construction decision on its refurbishment was made by the Board of Directors in Q1 2026. i-80 Gold is one of two gold companies in Nevada with an autoclave processing plant.
The Lone Tree Plant is envisioned to process material from the Company’s three underground mines, Granite Creek, Archimedes, and Cove, to establish a regional hub-and-spoke mining and processing model. Upon refurbishment and commissioning as planned, the Lone Tree Plant will allow the Company to transition from toll milling to owner-operated processing. This shift is expected to materially increase operating margins and enhance free cash flow generation.
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 within the Lone Tree open pit, which is not currently included in the new development plan.
QUICK FACTS
OWNERSHIP
100% i-80 Gold Corp
LOCATION
Battle Mountain Trend – Northern Nevada
STATUS
Constructiond decision granted on the refurbishment
Active heap leach pad (currently processing oxide ore from Granite Creek)
MINING STYLE
Centralized autoclave and carbon-in-leach processing facility
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
RECENT UPDATE
Refurbishment update following completion of engineering study in Q4 2025
Click here for webcast (December 2025)
TECHNICAL REPORTS
NI 43-101Technical Report on the Mineral Resource Estimates for the Lone Tree Deposit, Nevada (March 2025)
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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