The Teles Pires or Rio São Manuel is a 1370 km long river in Brasil.

The river flows through the state of Mato Grosso

Mato Grosso

Mato Grosso is one of the states of Brazil, the third largest in area, located in the western part of the country.Neighboring states are Rondônia, Amazonas, Pará, Tocantins, Goiás and Mato Grosso do Sul. It also borders Bolivia to the southwest...

 and its lower part is border between states Mato Grosso and Pará

Pará

Pará is a state in the north of Brazil. It borders the Brazilian states of Amapá, Maranhão, Tocantins, Mato Grosso, Amazonas and Roraima. To the northwest it also borders Guyana and Suriname, and to the northeast it borders the Atlantic Ocean. The capital is Belém.Pará is the most populous state...

. At its mouth it joins Juruena River

Juruena River

The Juruena River is a 1240 km long river in west-central Brazil, in the state of Mato Grosso. For the last 190 km of its lower part the river becomes the border between the states Mato Grosso and Amazonas...

 and together they form the Tapajós

Tapajós

The Tapajós, a Brazilian river running through a humid and hot valley, pours into the Amazon River 500 miles above Pará and is about 1200 miles long.It rises on the lofty Brazilian plateau near Diamantino in 14 degrees 25' south latitude...

, which is one of the biggest tributaries of the Amazon River

Amazon River

The Amazon of South America is the second longest river in the world and by far the largest by waterflow with an average discharge greater than the next seven largest rivers combined...

The most important settlement along the river is Alta Floresta

Alta Floresta

Alta Floresta is a city in Mato Grosso, Brazil. It is located at around .The city is served by Dep. Benedito Santiago Airport.-External links:*...

.

External links

• Teles Pires in the American Heritage Dictionary of the English (bartleby.com) (outdated length)
• Hidrovia Tapajos - Teles Pires - Regierungsdokument (portuguese)