The source of the river is between the municipalities of Ibiraiaras and Lagoa Vermelha, whence it flows generally south until it joins the Das Antas River to form the Taquari, near São Valentim do Sul.
This river originates in the regions surrounding Ibiraiaras and Lagoa Vermelha municipalities, flowing predominantly southward before joining the Das Antas River to form the Taquari, located close to São Valentim do Sul.