[4] In 1911, a stone marker was placed by the United States Coast and Geodetic Survey (USGS), now National Oceanic and Atmospheric Administration (NOAA),[6] at Luzon Datum or Station Balacanan, Mt.In 1945, during the Second World War, at the liberation of the town of Mogpog, American and Filipino troops fought against the Japanese Imperial forces during the Battle of Marinduque.The town is at the geographical center of the Philippines, attested by the site of the Luzon Datum of 1911 or Station Balanacan, a stone marker placed at a hill called Mt.Poverty incidence of Mogpog Source: Philippine Statistics Authority[15][16][17][18][19][20][21][22] Barangay Balanacan is where the main shipping port is located.It is famous for its large image of Our Lady of Biglang Awa, erected at a top of a shed on a mound of land overlooking the sea.