Cloverleaf Cold Storage Co., Sioux City, Iowa, said it purchased a cold storage warehouse in Columbus, Ohio, giving the company 11 public refrigerated warehouses in the Midwest with more than 50 million cubic feet of storage capacity. Officials noted that the Columbus, Ohio, location -- located near the Heartland Rail Corridor and beside a major intermodal hub -- will help the company service the northeast, midwest and mid-Atlantic regions.