Martie's Farm Service - Farm Supply - Service with a Personal Touch PO Box 475 Monticello, MN 55362 Phone: (763) 295-4664 Fax: (763) 295-8647 Email: info@martiesfarmservice.com... Service with a Personal Touch Martie's Farm Service is a family owned business started in Elk River in 1982. Martie's has since opened stores in Monticello and St. Francis. The Elk... River location is where the feed is manufactured to supply all 3 locations. Customer satisfaction is very important to us and all the employees at Martie's will do their very best...