Guaporé River

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Coordinates: 11°53′15″S 65°01′53″W / -11.8875, -65.03139
Guaporé
Iténez
River
none Rio Guaporé at Pontes e Lacerda (Brazil)
Rio Guaporé at Pontes e Lacerda (Brazil)
Countries Brazil, Bolivia
Tributaries
 - left Rio Alegre, Rio Verde, Río Paraguá, Río Blanco, Río Machupo
 - right Rio Guatire, Rio Branco o Cabixi, Rio Corumbiara, Rio Colorado, Rio Massaco
Source
 - elevation 631 m (2,070 ft)
 - coordinates 14°35′58″S 58°57′11″W / -14.59944, -58.95306
Mouth
 - location Mamoré River, Brazil/Bolivia
 - elevation 131 m (430 ft)
 - coordinates 11°53′15″S 65°01′53″W / -11.8875, -65.03139
Length 1,530 km (950 mi)
Basin 266,460 km² (102,880 sq mi)
Discharge mouth
 - average 1,530 /s (54,030 cu ft/s)
This article is about the river. For other uses, see Guaporé


Rio Guaporé is the name of a river in western Brazil along the Bolivian border, its Bolivian name is Río Iténez.

The river has its source in the Brazilian Mato Grosso circa 150 km northeast of Pontes e Lucerda. From this town on it flows in a westerly direction for about 120 km, where at Vila Bela da Santíssima Trindade it joins Rio Alegre. It flows in a northerly direction for another 180 km and from then on it forms the borderline between Brazil and the Brazilian states Mato Grosso and Rondônia in the northeast, and Bolivia and its departments Santa Cruz and Beni in the southeast. Here it carries the name Iténez on the Bolivian and Guaporé on the Brazilian side, before it joins Rí Mamoré at Sorpresa.