The Hayden Hill Opportunity
Four Nines holds the right to acquire 100% of Hayden Hill, a past-producing gold–silver property on private land in Lassen County, California. Four Nines is conducting the first systematic exploration drilling at Hayden Hill since 1997.
Historical production figures are approximate, from records of previous operators, and have not been verified by the Company. No current mineral resource or reserve has been defined. Four Nines holds the right to acquire 100% of Hayden Hill from a subsidiary of Kinross Gold U.S.A., Inc., subject to payments and work expenditures.
Mineralized Zones
3D modeling confirmed that Hayden gold mineralization is structurally controlled. Mapped epithermal veins are at the core of many of the modeled mineralized zones.
3D gradeshell modeling has defined multiple high-quality, high-probability exploration targets that can be executed from the existing approved drill sites.
The Geological Model
Although largely mined by Amax Gold, the shells provide crucial knowledge as to the distribution of gold within the upper portions of the Hayden Hill Deposit. Mapped epithermal veins are at the core of many of the modeled mineralized zones.
Modern Geological Model
HH26-001, HH26-003 and HH26-005 have each returned gold-bearing intervals exceeding 30 metres at average grades above 1 g/t Au, all starting at shallow depths (<25m) beneath the historic pit.
Reported intervals are downhole lengths.
Testing Below The Historical Pits
Current drilling is testing data-defined structural targets and deeper vein extensions beneath and adjacent to the historic workings. Results are being integrated into the geological model to better define the continuity, geometry and potential scale of the mineralized system.
Explore the Hayden Hill Project