Maple Valley-Anthon Oto High School, home of the Rams, is a public high school located in Mapleton, Iowa. Maple Valley-Anthon Oto High School is part of the Maple Valley CSD and has approximately 200 students and 9 varsity sports. The board of education, staff, and volunteers of the Maple Valley - Anthon Oto Community School shall be responsible for developing the intellectual, physical, emotional, social, and creative skills which will enable students to become productive, caring citizens in an ever changing world.