Lake Mainit

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Lake Mainit
Lake Mainit
Coordinates 9°28′N 125°31′E / 9.467°N 125.517°E / 9.467; 125.517Coordinates: 9°28′N 125°31′E / 9.467°N 125.517°E / 9.467; 125.517
Type Oligotrophic Freshwater lake
Primary inflows 28 creeks and rivers
Primary outflows Calinawan River
Catchment area 87,072 ha (870.72 km2)
Basin countries Philippines
Max. length 29.10 km (18.08 mi)
Surface area 17,340 ha (173.40 km2)
Average depth 128 m (419.95 ft)
Max. depth 223 m (731.63 ft)
Water volume 18.00 km3 (4.32 cu mi)
Shore length1 62.10 km (38.59 mi)
Surface elevation 42 m (137.80 ft)
Settlements Mainit
References [1][2]
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 kilometers.[2][3][4] The lake is also the deepest lake in the country with maximum depth reaching 223 meters.[2][5] It is located in northeastern part of Mindanao and shared between the provinces of Surigao del Norte and Agusan del Norte.


The name of the lake is a Cebuano word "mainit", which means hot.[6]

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
  • Fishes
  1. "Casili" (Anguilla spp.)
  2. Mudfish, "hayuan" or "halwan" (Channa striata)
  3. Gurami (Gourami belontiidae)
  4. "Bolinao" (Neosthethus thessa)


Municipalities bordering the lake[edit]

Municipalities within Lake Mainit's watershed[edit]


  1. ^ "Philippine Lakes - Lake Look to Lake Pandin". Retrieved 2008-10-17. 
  2. ^ a b c "Physical Features of Lake Mainit". Lake Mainit Development Alliance (LMDA). 2008-02-08. Retrieved 2008-10-17. 
  3. ^ "Lake Mainit". ASEAN Regional Centre for Biodiversity Conservation (ARCBC). Retrieved 2008-10-17. 
  4. ^ "Lake Mainit". Encyclopædia Britannica. Retrieved 2008-10-17. 
  5. ^ "Lake Mainit". BIMP-EAGA. Retrieved 2008-10-17. 
  6. ^ "How Mainit got its name?". 

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]