Philippines, geographic marker at Ifugao Rice Terraces of Cordillera Central Mountains in Banaue

The fabulous Ifugao Rice Terraces at Banaue in northern Luzon. It took this tribe of Igorots 2,000 years to build them, according to this geological study. (Caption from film strip envelope).Philippines: Luzon (isl.), Banaue, Ifugao rice terracesIfugao. (2013). In Encyclopædia Britannica. Retrieved from http://school.eb.com/levels/high/article/42049GrayscaleForman Safety Negatives, Box 1