General Mills to create South Dakota's largest organic crop farm

General Mills announced a deal Tuesday to create South Dakota's largest organic crop farm as the company works to secure enough organic ingredients to meet growing consumer demand worldwide. Gunsmoke Farms will convert 34,000 acres — more than 53 square miles — near Pierre to organic by 2020, where it will grow organic wheat for General Mills' popular Annie's Macaroni & Cheese line. General Mills, which is guaranteeing a market for the wheat, is working with Madison, Wisconsin-based Midwestern BioAg to develop the crop rotation and soil-building program needed for such a large farm to go organic. The company will measure results in sequestering carbon in the soil, increasing biodiversity on the landscape and bringing socio-economic benefits to local communities.