Lake Mainit

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Lake Mainit
Lake Mainit is located in Philippines
Lake Mainit
Lake Mainit
Location within the Philippines
Coordinates9°25′57″N 125°31′22″E / 9.43250°N 125.52278°E / 9.43250; 125.52278Coordinates: 9°25′57″N 125°31′22″E / 9.43250°N 125.52278°E / 9.43250; 125.52278
TypeOligotrophic Freshwater lake
Primary inflows28 creeks and rivers
Primary outflowsCalinawan River
Catchment area87,072 ha (870.72 km2)
Basin countriesPhilippines
Max. length29.10 km (18.08 mi)
Surface area17,340 ha (173.40 km2)
Average depth128 m (419.95 ft)
Max. depth223 m (731.63 ft)
Water volume18.00 km3 (4.32 cu mi)
Shore length162.10 km (38.59 mi)
Surface elevation42 m (137.80 ft)
1 Shore length is not a well-defined measure.
Lake Mainit looking south from the northern shore

Lake Mainit is the fourth largest lake in the Philippines, having a surface area of 173.40 square kilometres (66.95 sq mi).[2][3][4] The lake is also the deepest lake in the country with maximum depth reaching 223 metres (732 ft).[2][5] It is located in the northeastern section of Mindanao and shared between the provinces of Surigao del Norte and Agusan del Norte.


The name of the lake is a Visayan word mainit, which means "hot".[6][better source needed]

Flora and fauna[edit]



  • Animals
  1. Mindanao scops owl
  2. Mindanao savanna nightjar
  3. Mindanao Himalayan swiftlet
  4. Mindanao forest kingfisher
  5. White-breasted sea eagle (Haliaeetus leucogaster)
  6. Monkeys
  7. Wild pigs
  • Fish
  1. "Casili" (Anguilla spp.)
  2. Mudfish, "hayuan" or "halwan" (Channa striata)
  3. Gurami (Gourami belontiidae)
  4. "Bolinao" (Neostethus thessa)
  5. Common carp (Cyprinus carpio)
  6. "Tilapia" (Oreochromis niloticus)


Municipalities bordering the lake[edit]

Municipalities within Lake Mainit's watershed[edit]


  1. ^ "Philippine Lakes - Lake Look to Lake Pandin". Retrieved 17 October 2008.
  2. ^ a b c "Physical Features of Lake Mainit". Lake Mainit Development Alliance (LMDA). 8 February 2008. Retrieved 17 October 2008.
  3. ^ "Lake Mainit". ASEAN Regional Centre for Biodiversity Conservation (ARCBC). Retrieved 17 October 2008.
  4. ^ "Lake Mainit". Encyclopædia Britannica. Retrieved 17 October 2008.
  5. ^ "Lake Mainit". BIMP-EAGA. Archived from the original on 30 October 2008. Retrieved 17 October 2008.
  6. ^ "How Mainit got its name?".
  7. ^ "Municipality of Alegria". Municipality of Alegria.

Further reading[edit]

  • A Directory of Philippine Wetlands. Vol I, compiled by Davies, J. et al. (Asian Wetland Bureau Philippines Foundation, Inc, 1991)
  • Webpage on Lake Minit (cited part available online)

External links[edit]