WATCH: Drone footage of massive marijuana crop near Mackay

A $20 MILLION drug bust has sent a strong message to those who continue to grow marijuana according to Mackay Detective Inspector Bruce Duck.

The joint operation between Mackay, Cairns and Brisbane police led to the enormous drug bust at a Calen property on Wednesday.

Det Insp Duck said the 8000 marijuana plants police will allege they found covered an area the size of about two basketball courts and had a street value of more than $20 million.

Two Bucasia men have been arrested and charged following a police search at a property in the mountains at Calen.

The property owner was not aware his land was being used to grow marijuana.

Det Insp Duck said the operation had involved six months of work.

"It's been fairly intense and fairly involved," he said.

"The investigation is closed at this time and we're happy with it at the moment.

"The crop was destroyed at the scene."

Det Insp Duck said the success of the operation sent a strong message to the community.

"Whilst people are going to continue on this mould of cultivating and producing cannabis crops, we will do our job and do what we can to make sure it doesn't get to to the community," he said.

A 73-year-old man and a 37-year-old man have been charged with producing a dangerous drug. They were due to appear in Mackay Magistrates Court today.


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