Publisher: National Mapping and Resource Information Athority (NAMRIA)
Philippines 1:50,000(NTM Series) / National Mapping & Resource Information Authority. Manila, 1990-2005. 5 col. Contour interval 20 meters with supplementary contours at 5 and 10 m. UTM projection, Clarke Spheroid 1866. This series will eventually replace the S711 and S701 maps which covers the whole Philippines in 672 sheets. Maps are 15'X15' interval.