Underground bunker and large arsenal uncovered during marijuana grow investigation – krcrtv.com
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by Adam Robinson
ANDERSON, Calif. — Investigators found an underground bunker, multiple firearms and thousands of rounds of ammunition during an investigation into an illegal marijuana growing operation in Anderson, according to the California Highway Patrol (CHP).
The case began in December 2025 after the CHP received a tip about a suspected illegal marijuana grow on a property in the area. Investigators later confirmed the information through a search warrant and an aerial survey by CHP Air Operations.
On Jan. 20, officers served a search warrant at the property after about a month of investigation. Inside, they found an underground bunker reached through a 100-foot culvert. The bunker had electricity, ventilation, a concrete floor with drainage and equipment used to grow marijuana.
Officers also seized 13 firearms, about 10,000 rounds of ammunition, 30 high-capacity magazines and 4 body armor vests. Some of the ammunition was armor-piercing, CHP said. Among the weapons were a sawed-off shotgun, several AR-15-style rifles and firearms reported stolen years earlier, according to officials.
Michael Jay Kamfolt, 40, of Anderson, was arrested and booked on multiple weapons-related charges, including possession and manufacturing of illegal firearms and ammunition.
CHP said the investigation remains ongoing. "This operation is far beyond an illegal grow," CHP Northern Division Chief John Pinoli wrote in a press release for this incident. "The combination of a hidden bunker and an alarming cache of illegal firearms and ammunition highlights the threat posed to public safety. I am proud of the tireless work of our Northern Division personnel that led to this arrest."
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