The
Juruena River is a long river in west-central
Brazil, in the state of
Mato Grosso. It originates in the
Parecis plateau. For the last of its lower part the river becomes the border between the states Mato Grosso and
Amazonas. It finally joins the
Teles Pires river to form the
Tapajós river, which is one of the biggest tributaries to the
Amazon River. The Juruena River is not navigable due to its many waterfalls and rapids.