Editing Geography of Argentina (section)

== Water resources ==
{{Further|Water resources management in Argentina}}

In Argentina, the fluvial net is integrated by many systems of different economic relevance, which could be measured by their amount of flow and navigability. Water flow relevance is based on its potential to be used for irrigation and as a source of energy. Depending on where the water streams drain, rivers and creeks could be classified into three different kinds of watersheds:
* Open or [[exorheic]] watersheds: they have exterior drainage (into the sea) - Parana River, Uruguay River, Negro River
* Closed or [[Endorheic basin|endorheic]] watersheds: they have interior drainage - Atuel River, Diamante River, Tunuyan River
* Areic watersheds: they lack of drainage and could be found in the center-west of the chaquenean plain, on the west of the pampean region and in some patagonic areas

On the other hand, lakes and lagoons are permanent accumulations of water over impervious depressions. Their difference is mainly based on their extension and depth. They are very important for stream regulation, as a source of energy, tourist attraction and its ichthyologic wealth. In Argentina, all major lakes are in Patagonia.<ref>{{Cite book |last=Carlevari and Carlevari |title= |year=2007}}</ref>

===Rivers===
{{Further|List of rivers of Argentina}}
[[File:Confluence_of_the_Iguazu_and_Parana_rivers,_Puerto_Iguazu,_Misiones,_Argentina,_6th._Jan._2011_-_Flickr_-_PhillipC.jpg|thumb|Confluence of the [[Iguazu River|Iguazu]] and [[Parana River|Parana]] rivers.]]

Major [[List of rivers of Argentina|rivers in Argentina]] include the [[Pilcomayo River|Pilcomayo]], [[Paraguay River|Paraguay]], [[Bermejo River|Bermejo]], [[Colorado River (Argentina)|Colorado]], [[Río Negro (Argentina)|Río Negro]], [[Salado River, Argentina|Salado]], [[Uruguay River|Uruguay]] and the largest river, the [[Paraná River|Paraná]]. The latter two flow together before meeting the [[Atlantic Ocean]], forming the estuary of the [[Río de la Plata]]. Regionally important rivers are the [[Atuel River|Atuel]] and [[Mendoza River|Mendoza]] in the [[Mendoza Province|homonymous province]], the [[Chubut River|Chubut]] [[in Patagonia]], the Río Grande in Jujuy, and the San Francisco River in Salta.

===Lakes===
{{Further|List of lakes of Argentina}}

There are several large lakes in Argentina, many of them in Patagonia. Among these are lakes [[Lake Argentino|Argentino]] and [[Lake Viedma|Viedma]] in Santa Cruz, [[Nahuel Huapi Lake|Nahuel Huapi]] in [[Río Negro Province|Río Negro]] and [[Fagnano Lake|Fagnano]] in [[Tierra del Fuego]], and [[Lake Colhué Huapi|Colhué Huapi]] and [[Lake Musters|Musters]] in Chubut. [[Buenos Aires/General Carrera Lake|Lake Buenos Aires]] and [[O'Higgins/San Martín Lake]] are shared with Chile. [[Mar Chiquita (Córdoba)|Mar Chiquita]], Córdoba, is the largest saltwater lake in the country. There are numerous reservoirs created by dams. Argentina features various hot springs, such as those at [[Termas de Río Hondo]] with temperatures between 30&nbsp;°C and 65&nbsp;°C.

A recent global remote sensing analysis suggested that there were 3,091&nbsp;km<sup>2</sup> of tidal flats in Argentina, making it the ninth ranked country in terms of how much tidal flat occurs there.<ref>{{cite journal |last1=Murray |first1=N.J. |last2=Phinn |first2=S.R. |last3=DeWitt |first3=M. |last4=Ferrari |first4=R. |last5=Johnston |first5=R. |last6=Lyons |first6=M.B. |last7=Clinton |first7=N. |last8=Thau |first8=D. |last9=Fuller |first9=R.A. |title=The global distribution and trajectory of tidal flats |journal=Nature |date=2019 |volume=565 |issue=7738 |pages=222–225 |doi=10.1038/s41586-018-0805-8 |pmid=30568300 |s2cid=56481043 |url=https://www.nature.com/articles/s41586-018-0805-8}}</ref>