Liguasan Marsh is a

marsh A marsh is a wetland that is dominated by herbaceous rather than woody plant species.Keddy, P.A. 2010. Wetland Ecology: Principles and Conservation (2nd edition). Cambridge University Press, Cambridge, UK. 497 p Marshes can often be found a ...

in the

Mindanao River The Rio Grande de Mindanao, also known as the Mindanao River, is the second-largest river system in the Philippines. Located on the southern island of Mindanao, with a total drainage area of , draining the majority of the central and eastern po ...

basin in the southern island of

Mindanao Mindanao ( ) ( Jawi: مينداناو) is the second-largest island in the Philippines, after Luzon, and seventh-most populous island in the world. Located in the southern region of the archipelago, the island is part of an island group of ...

Philippines The Philippines (; fil, Pilipinas, links=no), officially the Republic of the Philippines ( fil, Republika ng Pilipinas, links=no), * bik, Republika kan Filipinas * ceb, Republika sa Pilipinas * cbk, República de Filipinas * hil, Republ ...

. The marsh covers an area of around spanning the provinces of Cotabato, Maguindanao and

Sultan Kudarat Sultan Kudarat, officially the Province of Sultan Kudarat ( hil, Kapuoran sang Sultan Kudarat; Maguindanaon: ''Dairat nu Sultan Kudarat'', Jawi: دايرت نو سلطان كودرت; ceb, Lalawigan sa Sultan Kudarat; tl, Lalawigan ng Sul ...

. of this area is reserved for a

game refuge A nature reserve (also known as a wildlife refuge, wildlife sanctuary, biosphere reserve or bioreserve, natural or nature preserve, or nature conservation area) is a protected area of importance for flora, fauna, or features of geological or o ...

and bird sanctuary At least 92 species of birds, dozens of fish species, six species of reptiles and five species of amphibians are recorded to live in the area. The marshland is the only area in the Philippines where the

Comb-crested Jacana The comb-crested jacana (''Irediparra gallinacea''), also known as the lotusbird or lilytrotter, is the only species of jacana in the genus ''Irediparra''. Like other jacana species, it is adapted to the floating vegetation of tropical freshwat ...

can be sighted according to the

Haribon Foundation The Haribon Foundation for the Conservation of Natural Resources, Inc., simply known as Haribon Foundation, is a nature conservation organization in the Philippines. The name "Haribon" ("bird king") is a reference to the Philippine eagle. The gro ...

. The place is also one of the few places in the country where there are populations of the

Philippine crocodile The Philippine crocodile (''Crocodylus mindorensis''), also known as the Mindoro crocodile, the Philippine freshwater crocodile, the ''bukarot'' in Ilocano, and more generally as a ''buwaya'' in most Filipino lowland cultures, is one of two spec ...

and the

Estuarine crocodile The saltwater crocodile (''Crocodylus porosus'') is a crocodilian native to saltwater habitats and brackish wetlands from India's east coast across Southeast Asia and the Sundaic region to northern Australia and Micronesia. It has been liste ...

, and in the forested area of the march, the

Philippine eagle The Philippine eagle (''Pithecophaga jefferyi''), also known as the monkey-eating eagle or great Philippine eagle, is a critically endangered species of eagle of the family Accipitridae which is endemic to forests in the Philippines. It has br ...

. Liguasan Marsh is also noted for its

natural gas Natural gas (also called fossil gas or simply gas) is a naturally occurring mixture of gaseous hydrocarbons consisting primarily of methane in addition to various smaller amounts of other higher alkanes. Low levels of trace gases like carbo ...

deposit which is estimated to cover a radius of . Philippine Island - Mindanao - NARA - 68156154

References

Marshes of the Philippines Landforms of Cotabato Landforms of Maguindanao del Norte Landforms of Maguindanao del Sur {{ARMM-geo-stub