CANTON -- The St. Lawrence County Planning Board will meet Thursday, March 13 at 7 p.m. in the second floor conference room at the Human Services Center, 80 State Highway 310. The Board is expected to consider full reviews of a rezoning request in Ogdensburg to connect a business parcel to a residential/business mixed use lot, and a site plan review of a planned industrial district that would include a junkyard or salvage yard in Madrid. The meetings are open to the public.