Sr. High Mission Trips: 1 to 2 weeks: under $500: Service Projects & Helps: November: Families: Appalachia Service Project - Browse by Start year : MissionGuide.globalSr. High Mission Trips: 1 to 2 weeks: under $500: Service Projects & Helps: November: Families: Appalachia Service Project - Browse by Start year : MissionGuide.global