Contact Us The Walnut Grove – Field of Opportunity Physical Address 8800 Columbiana Canfield Rd. Canfield, OH 44406 Mailing Address P.O. Box 674 Canfield, OH 44406 Email [email protected] Phone (234) 414-0224 CONTACT US Name* Email* Reason for Contact Facilities Reservation Maintenance Groundskeeping Other If "Other..."