McHenry County Sheriff's deputies on Wednesday chopped up and burned more than 2,500 marijuana plants found in an unincorporated area near Woodstock.
The plants, each of them 5 to 10 feet in height, covered almost two acres northeast of Woodstock and would have netted their owner an estimated $2.5 million, sheriff's officials said.
"It was a huge, huge field. It was just ridiculous out there," McHenry County Sheriff's Lt. Andrew Zinke said. "I don't know if it was the biggest (we've busted), but it's one of the top two."
McHenry County Sheriff's police learned about the field after state and local conservation police found the plants and contacted the sheriff's department.
Police have made no arrests in the case.
"Nothing's changed since yesterday, just a lot of tired investigators," Zinke said. "We anticipate arrests, but nothing in the near future."
Wednesday's bust was the first this year. Police believe the field's owner was preparing to harvest the marijuana. The sheriff's department destroyed six or seven large marijuana fields last year. Investigators are examining evidence collected this week to determine if the field has any connection to last year's busts.
Anyone with information about the field should contact the sheriff's narcotics division at (815) 338-2144 or the Crime Stoppers hotline at (800) 762-7867.