The Boyle County Sheriff's office said a tip led them to hundreds of marijuana plants over the weekend.
Deputies said the plants were being grown in a sophisticated indoor growing building in Danville.
Kentucky State Police and the Drug Enforcement Agency also responded.
During a flyover, they said they discovered several hundred more marijuana plants growing on a hillside at a separate location. They said marijuana plants were also found growing inside at thelocation.
The sheriff said the plants were being grown in the Parksville and Forkland areas of Danville.
Anyone with information about these marijuana grow operations are being asked to contact the Boyle County Sheriff's office. You can remain anonymous.