Keith Zoeller, chair of the Rock Falls Rotary Corn Boil, is making final preparation with Cindy Poci, co-owner with Jerry Poci of Poci's Market, for the sweet corn that will be used for the 76th Annual Rock Falls Rotary Corn Boil to be held July 22 at the Rock Falls Community Building from 11 a.m. to 7 p.m.