HURRICANE — Washington County Sheriff's deputies have finished their massive marijuana bust on Pine Valley Mountain that began last month.

In a statement Monday, the sheriff's office said more than 15,000 plants were seized and 13 tons of plant materials were destroyed in their county alone since the operation began on Aug. 27. The estimated street value of the pot is believed to be nearly $50 million.

Law enforcement from across the state have been involved in marijuana farm busts scattered across public lands. Many have culminated as a result of a year-long investigation by the federal Drug Enforcement Agency and local drug task forces. Busts in Iron, Garfield, Washington and Sevier counties are believed to be among the biggest in state history.