Four Nines Gold Inc. has intersected multi-stage hydrothermal brecciation and associated epithermal alteration across the first three drill holes of its maiden core drilling program at the Hayden Hill Gold Project in Lassen County, California.

The initial phase has advanced 1,384 feet across the project area to test deeper zones beneath historical workings at the past-producing property, which yielded 480,000 ounces of gold and 1.3 million ounces of silver before remaining undrilled for nearly three decades.

Hole HH26-001 was completed to a depth of 622 feet, returning two intervals of multi-stage hydrothermal breccia within the upper mudstone and underlying fragmental igneous units. Hole HH26-002 reached 420.6 feet, intersecting a hydrothermal breccia zone inside oxidized and silicified mudstone. A third hole, HH26-003, has reached 341 feet and intersected sulfide-silica alteration alongside local zones of hydrothermal brecciation from 159 to 310 feet.

“This is exactly what we came to Hayden Hill looking for, and we're extremely excited by what we're seeing. Multiple zones of hydrothermal breccia across all three holes confirm the strength of the epithermal system and validate the geological model that led us to these targets. We believed previous operators had left a much bigger story beneath and around the historical mine, and these early observations only strengthen that conviction. The drills are turning, the first assays are ahead of us, and we believe Hayden Hill is entering a potentially transformational period.”

— Charles Ross, President & CEO of Four Nines Gold

Core samples from the drilling have been submitted to the ALS laboratory in Reno, Nevada, for preparation and analysis, with initial assay results pending as the campaign continues.

Read the full announcement: Four Nines Gold Intersects Hydrothermal Breccia in First Three Holes at Hayden Hill