The San Miguel River ( es, Río San Miguel) is a river in Colombia and Ecuador. It is a sub-tributary of the

Solimões River Solimões () is the name often given to upper stretches of the Amazon River in Brazil from its confluence with the Rio Negro upstream to the border of Peru. Geography The Amazon / Solimões river just above the confluence of the Solimões and ...

(middle course of the

Amazon Amazon most often refers to: * Amazons, a tribe of female warriors in Greek mythology * Amazon rainforest, a rainforest covering most of the Amazon basin * Amazon River, in South America * Amazon (company), an American multinational technology c ...

) via the

Putumayo River The Putumayo River or Içá River ( es, Río Putumayo, pt, Rio Içá) is one of the tributaries of the Amazon River, southwest of and parallel to the Japurá River. Course The Putumayo River forms part of Colombia's border with Ecuador, as well ...

Geography

The San Miguel River rises on the slopes of the

Andes Mountains The Andes, Andes Mountains or Andean Mountains (; ) are the List of mountain ranges#Mountain ranges by length, longest continental mountain range in the world, forming a continuous highland along the western edge of South America. The range i ...

, in the extreme south of the Colombian

department 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 Nariño, on the border between Colombia and Ecuador. It then flows east, marking the border between the two countries, before passing through Ecuador and then joining the

, again on the border..

References

{{Authority control Tributaries of the Amazon River Rivers of Colombia Rivers of Ecuador Border rivers Colombia–Ecuador border International rivers of South America Geography of Sucumbíos Province