Police said they found approximately 7,000 pot plants in various stages of growth.
The search warrant was executed on Feb. 6, the RCMP said in a weekend release.
Staff Sgt. Kevin Keane said the grow-op was located in “a large underground bunker that had been constructed beneath a hay shed.”
“This grow op is believed to be part of a larger network of grow operations that local RCMP have been investigating,” he said.
Keane said police would be recommending charges against a 52-year-old Sorrento man.