Yellow Color: Vision of development.

Shield: From the Provincial Seal of Cagayan where the town is located.

Clam: Locally known as "kabibi", an abundant, distinct specie of clam which could only be found in Lal-lo throughout the region.

Islands: Barangay that sprouted at the middle of the river producing bountiful rootcrops.

Sacks of Rice: Main product of Lal-lo.

Logs: Town's richness in forest products.

River: Mighty Cagayan River which disects the town.

Bridge: First hanging bridge in the Philippines; decisive link for progress between Cagayan and Region I.