Mount Pulong Bato (Columbato)
Mount Pulumbato, "Mt. Columbato"
Location within the Zamboanga Peninsula
Highest point
Elevation360 m (1,180 ft)[1]
Coordinates6°58′22″N 122°04′22″E / 6.97278°N 122.07278°E / 6.97278; 122.07278
Geography
Mount Pulong Bato is located in Philippines
Mount Pulong Bato
Mount Pulong Bato
Location within the Philippines
LocationMindanao
CountryPhilippines
RegionZamboanga Peninsula
CityZamboanga City
Parent rangeZamboanga Cordillera
Geology
Age of rockEarly to Middle Miocene[2]
Mountain typeMonolith
Volcanic arc/beltZamboanga-Sulu Arc
Last eruptionUnknown

Mount Pulong Bato (Columbato) is a monolith located in Zamboanga City at the Zamboanga Peninsula, the western tip of the island of Mindanao in the Philippines. The mountain is situated in the Upper Abong-Abong Park within the Pasonanca Natural Park, in Barangay Pasonanca, only a few kilometers away from the city's downtown section.

Geology

Columbato became infamous because when the Philippine Institute of Volcanology and Seismology (PHIVOLCS) confirmed the mountain is a volcano which is unknown to most people. What is unusual about the mountain is, unlike the other mountains surrounding the city, only Mount Columbato is made from solid rock.[3]

According to PHIVOLCS, the volcano is an Intrusion type of volcano meaning it was formed within Earth's crust. Magma was pushed from the beneath the Earth surface but did not come out through an eruption like a typical volcano (Extrusion). The magma eventually solidified while it is still enclosed by softer rocks, which was later exposed by erosion or weathering, a process that could take thousands of years.

Holy Week observance

The mountain is near the premises of the famous Abong-Abong Park, where both domestic and foreign Catholic devotees pilgrimage annually during Holy Week to observe the holiday and meditate.[3]

Background: from Columbato to Pulong bato

The correct name of the mountain is Columbato. The name columbato is from the Tagalog words "Kolum"(column) and bato(stone or rock). The chavacanos spelled the word "kolum" as "colum" but kept the "bato" as is.

The name "pulong bato" only started in the 1980s when the popular mayor of Zamboanga City (Cesar C. Climaco) created the station of the cross in abong-abong beside the mountain of Columbato. It became a very popular place and Christians would congregate and "meet" there during holy week. In Tagalog the word for meeting is "PULONG". That's when they started referring to the place as "Pulong bato".

References

  1. ↑ "Zamboanga City Map". Mapcarta. Retrieved 2011-08-23.
  2. ↑ Malpas, J.; Fletcher, C.J.N.; Ali, J.R.; Aitchison, J.C. (2004). Aspects of the tectonic evolution of China. Geological Society of London. p. 308. doi:10.1144/GSL.SP.2004.226.
  3. 1 2 Feliciano, Jun (2005-01-07). "City has extinct volcano" Archived 2012-03-05 at the Wayback Machine. Zamboanga Sunstar.
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