In Tigkiw na Saday jar burial site, a 45-minute hike from Barangay Escuala, Casiguran, saw eight (8) burial jars excavated from April 22 to May 21 and October 18. the team from the national Museum came ipon large, circular, dome-shaped flat bottomoed stone covers made of volcanic tuff with an approximate weight of 50 to 60 kilograms.
