Humboldt County authorities say they seized more than 134,000 marijuana plants, worth an estimated 469 million dollars.
They're calling it the biggest pot bust in Humboldt County history.
The plants ranged from one to three feet tall.
They were discovered on federal and private timberland along the county's eastern edge north of Dinsmore.
The plants were spotted during surveillance flights and were aradicated over the past week by county, state and federal
No arrests were made during the raid, but investigators believe a Mexican drug cartel was behind the massive growing operation.