La Quiaca River ( es, Río La Quiaca), also known as Villazón River, is a river of reduced flow on the border between Argentina and

Bolivia , image_flag = Bandera de Bolivia (Estado).svg , flag_alt = Horizontal tricolor (red, yellow, and green from top to bottom) with the coat of arms of Bolivia in the center , flag_alt2 = 7 × 7 square p ...

. It is highly contaminated in its passage through the cities of La Quiaca and

Villazón Villazón is a town in southern Bolivia, on the border with Argentina. It sits directly across La Quiaca River from La Quiaca in Argentina. The town is a busy trading hub, with large quantities of goods flowing north. It is also a heavily used ...

, on its right and left margins, respectively. Between these two cities, across the river, is the Horacio Guzmán International Bridge, which is the only step enabled between the Argentine province of Jujuy and the Potosí Department. This river originates in Toquero and runs from west to east. After passing through La Quiaca, head north towards Bolivia. Its tributaries are the streams of Tafna, the Marsh, Sansana, Yavi and Yavi Chico. It flows into the

San Juan del Oro River The San Juan del Oro River is a river in the Potosí Department in Bolivia. See also * Río Grande de San Juan *List of rivers of Bolivia References

*Rand McNally, The New International Atlas, 1993. Rivers of Potosí Department {{Boli ...

which in turn joins the Cotagaita River to form the Camblaya River which with the name of

Pilaya River Pilcomayo (in Hispanicized spelling) (Quechua Pillkumayu or Pillku Mayu, ''pillku'' red, ''mayu'' river, "red river", Guarani Ysyry Araguay ) is a river in central South America. At long, it is the longest western tributary of the Paraguay River ...

ends at the

Pilcomayo River Pilcomayo (in Hispanicized spelling) (Quechua Pillkumayu or Pillku Mayu, ''pillku'' red, ''mayu'' river, "red river", Guarani Ysyry Araguay ) is a river in central South America. At long, it is the longest western tributary of the Paraguay River ...

. The Argentine National Gendarmerie, through the Environmental Patrol of the La Quiaca Squadron is dedicated to the river cleaning project.Escuadrón La Quiaca de la Gendarmería Nacional Argentina
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References

Rivers of Argentina Rivers of Jujuy Province Rivers of Bolivia Rivers of Potosí Department Argentina–Bolivia border International rivers of South America Border rivers {{Bolivia-river-stub