JOURNEY TO THE CENTER OF THE PHILIPPINES

Luzon Datum of 1911 Rock Marker

Luzon Datum of 1911 Rock Marker

Sometime in 1906 the USCGS (now NOAA) establized a geodetic marker drilled in a cubic meter of diorite rock atop this mountain formerly belongong to Balanacan, Mogpog but is at the bounderies of Brgy. Argao, Hinanggayon and Silangan, Mogpog, Marinduque and another reference rock marker about 10 feet away. This important geodetic point marker is used as point number one for all map makers of the country.Besides the Luzon Datum of 1911 rock marker, the Philippine NAMRIA establized a concrete reference marker. This Luzon Datum of 1911 is at first level accuracy. The Luzon Datum of 1911 (a 1906 USGS marker signifying the center of the Philippines).

This heart-shaped island is also smack-center of the Philippine Archipelago. A 1911 American-built marker, known as Luzon Datum of 1911, would later confirm that within Marinduque lies the geodetic center of the Philippines. In view of this, Marinduque island prides itself as the center of the Philippines. - The Author