Pioneer Heritage Festival of the Ozarks, Inc. Share: Community Action OrganizationsClubs & Civic OrganizationsEvents and Festivals Pioneer Heritage Festival of the Ozarks, Inc. Visit Website Ava, MO 65608 (417) 543-3401 Facebook Hours: M-F 9:00 am - 5:00 pm About About Planning, management and operation of The Pioneer Heritage Festival of the Ozarks Call The Office (417) 683-4594 Office Location 810 Collins Avenue Ava, MO 65608 Email Us director@avachamber.org