The Laguna Urre Lauquén (pron.: ourré laukén ) is a not very deep lake of 90 km ² more or less, located in province Argentine of the Pampa. It is fed by water of the Río Desaguadero (called Chadileuvú here) which throws northern side to it. Being given the general dryness of the basin of the river, the irregularity of precipitations and the overuse of its water and those of its affluents for the irrigation, it very often happens that water of Desaguadero, finishes their course in the lagoon and lose themselves there by evaporation and infiltration.

Other seasons or other years on the other hand, following good sufficient precipitations in the area of Cuyo, the found abundance of water of the river makes him pass in addition to the lagoon and flow downstream, in the Laguna Amarga, or further still in the Río Colorado.

Etymology

Urre wants to say Brume in Mapudungun, language of the Indians Mapuches. Lauquén or Lafquén , toponym frequent in Patagonie means Lac . It is thus about the Lac of the Fogs .

Situation

The lake is located at a few kilometers in the east of the Laguna Dulce and somewhat in the North-East and upstream of the Laguna Amarga which is it also in communication with the Río Desaguadero or Chadileuvú.

Its approximate coordinates are 38°00' of southern latitude, and 65°50' of western longitude.

Some statistical data

• Its surface is at an altitude of 219 meters.

• Its surface is of 95  000  000 of m ² either 95 square kilometers (or twice that of the Lake of Le Bourget in France).
• Its depth average is of 1,6 meters.
• the volume of water contained is of 152 million m ³.
• the length of its banks east of 34 kilometers.
• the extent of its catchment area is of 240  000 km ²
• Its emissary, the Río Curacó have a flow most of the time very low and sometimes equal to zero, on average 3 to 5 m ³.

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