The Itonomas River is a river of

Bolivia Bolivia, officially the Plurinational State of Bolivia, is a landlocked country located in central South America. The country features diverse geography, including vast Amazonian plains, tropical lowlands, mountains, the Gran Chaco Province, w ...

that flows through the

departments Department may refer to: * Departmentalization, division of a larger organization into parts with specific responsibility Government and military * Department (administrative division), a geographical and administrative division within a country, ...

of Santa Cruz and Beni. It is a part of the

Amazon River basin The Amazon basin is the part of South America drained by the Amazon River and its tributaries. The Amazon drainage basin covers an area of about , or about 35.5 percent of the South American continent. It is located in the countries of Bolivi ...

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Originating near

Concepción Lake __NOTOC__ Concepción is a lake in Chiquitos Province, Santa Cruz Department, Bolivia Bolivia, officially the Plurinational State of Bolivia, is a landlocked country located in central South America. The country features diverse geograph ...

at the confluence of the intermittent Quimome and Santa Maria Rivers as the San Julián River, the river flows northwards until it becomes the San Pablo River near the city of Ascensión de Guarayos, after which point it forms part of the border between the Beni and Santa Cruz Departments. It then continues into further north into the Beni Department, and after flowing past the small Lake El Bi, it becomes the San Luis River, a name it retains for a short distance until taking on the name Itonomas at its confluence with the Lopez River. Despite its considerable length, the Itonomas is nominally considered to be a tributary of the shorter Machupo River, which in turn drains into the Iténez River only a short distance further downstream. Additionally, due to the situation of its headwaters at the eastern edge of the vast Bañados del Izozog, the Itonomas can be considered to be a hydrological continuation of the Parapetí River, which originates in the Bolivian

Andes The Andes ( ), Andes Mountains or Andean Mountain Range (; ) are the List of longest mountain chains on Earth, longest continental mountain range in the world, forming a continuous highland along the western edge of South America. The range ...

. Over its course it receives tributaries such as the Quizer River.

References

*Rand McNally, The New International Atlas, 1993. Rivers of Beni Department Rivers of Santa Cruz Department (Bolivia) {{Bolivia-river-stub

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See also

References