Lake Mainit

{{Short description|Lake in the Philippines}}

{{Use Philippine English|date=March 2023}}

{{Use mdy dates|date=March 2023}}

{{Infobox body of water

| name = Lake Mainit

| image = Lake Mainit Surigao del Norte sunset.JPG

| caption = Lake Mainit looking south from the northern shore

| image_bathymetry =

| caption_bathymetry =

| location = Mindanao

| pushpin_map = Philippines

| pushpin_label_position =

| pushpin_map_alt =

| pushpin_map_caption = Location within the Philippines

| coordinates = {{coord|9|25|57|N|125|31|22|E|region:PH|display=inline,title}}

| coor_pinpoint =

| type = Oligotrophic Freshwater lake

| inflow = 28 creeks and rivers

| outflow = Calinawan River

| catchment = {{Convert|870.72|km2|sqmi|abbr=on}}

| basin_countries = Philippines

| length = {{Convert|29.1|km|mi||abbr=on}}

| width =

| area = {{Convert|173.4|km2|sqmi|abbr=on}}

| depth = {{Convert|128|m|ft|abbr=on}}

| max-depth = {{Convert|223|m|ft|abbr=on}}

| volume = {{Convert|22.2|km3|cumi|abbr=on}}

| residence_time =

| shore = {{Convert|62.1|km|mi||abbr=on}}

| elevation = {{Convert|42|m|ft|abbr=on}}

| frozen =

| islands =

| cities = {{hlist |item_style=white-space:nowrap; | Alegria | Jabonga | Kitcharao | Mainit}}

| reference = {{cite web|url=http://www.indexmundi.com/zl/rp/80.htm|title=Philippine Lakes - Lake Look to Lake Pandin|accessdate=October 17, 2008}}

| extra =

{{maplink|type=shape|frame=yes|plain=yes|frame-align=center|zoom=10|frame-width=250|frame-height=250|stroke-color=#000000|stroke-opacity=0.5|stroke-width=3|fill-opacity=0}}

}}

Lake Mainit is the fourth largest lake in the Philippines, having a surface area of {{convert|173.40|km2}}.{{cite web|url=http://lmda.wordpress.com/category/physical-feature-of-lake|title=Physical Features of Lake Mainit|date=February 8, 2008|publisher=Lake Mainit Development Alliance (LMDA)|accessdate=October 17, 2008}}{{cite web|url=http://www.arcbc.org.ph/wetlands/philippines/phl_lakmai.html|title=Lake Mainit|publisher=ASEAN Regional Centre for Biodiversity Conservation (ARCBC)|accessdate=October 17, 2008}}{{cite encyclopedia|url=http://www.britannica.com/EBchecked/topic/358722/Lake-Mainit|title=Lake Mainit|encyclopedia=Encyclopædia Britannica|accessdate=October 17, 2008}} The lake is also the deepest lake in the country with maximum depth reaching {{convert|223|m}}.{{cite web|url=http://www.eaga.org.bn/eaga/forestry/Philippines/Lake%20Mainit/lake%20Mainit.htm|title=Lake Mainit|publisher=BIMP-EAGA|accessdate=October 17, 2008|url-status=dead|archiveurl=https://web.archive.org/web/20081030103814/http://www.eaga.org.bn/eaga/forestry/Philippines/Lake%20Mainit/lake%20Mainit.htm|archivedate=October 30, 2008}} It is located in the northeastern section of Mindanao and shared between the provinces of Surigao del Norte and Agusan del Norte.