The Cristalino River (Portuguese: Rio Cristalino) is a river of the states of Pará and Mato Grosso in western Brazil. It is a tributary of the Teles Pires.
After crossing the border into Mato Grosso the river flows through the 184,900 hectares (457,000 acres) Cristalino State Park, established in 2001, before entering the Teles Pires.
The river is navigable throughout the state park, despite the large number of submerged rocks and small rapids along its course.[2]