A large indoor marijuana grow op in the county is busted. On Tuesday, OPP executed a search warrant at a Madill Road residence in Highlands East. They found plants, bud and resin in large quantities and arrested two men at the scene.  A 42 year old man from Gilmour Ontario was charged with production of a controlled substance as well as possession for the purpose of trafficking. And a 50 year old Richmond Hill man was also charged with fail to comply with recognizance and was held for a bail hearing yesterday.