Schools-public 1104 5th Ave Alton, IA 51003 Phone : (712) 756-4128 Business Category Schools Government Offices & Public Schools Floyd Valley-moc Middle School 1104 5th Ave Alton, IA 51003 Phone : (712) 756-4128 Floyd Valley-moc Middle School Business Category Schools Government Offices-City Village & Twp Government Offices State & Local Schools-Junior High Schools-Public Government Offices & Public Schools