Sky Blue: Body of water.
Red & Blue: From Philippine National Flag.
Structure on Blue Field: Oldest structure inMunicipality. Viejo, a symbol of heritage, peace and order.
Plow on the Red Field: Agriculture.
Three Wavy Blue Stripes: Bodies of water found in Municipality, namely: Cagayan and Magat Rivers and a creek.
Yellow Pentagon: Crown of Queen Mercedes, lady of King Alfonso III of Spain.
Yellow: Peace and democracy.
Corn, Peanut, Rice & Tobacco on Green Field: Agricultural products of Municipality.
Green: Farms and vegetation.