The Rio dos Bois is a river in the state of Goiás, central Brazil, originating in the Serra do Congumé within the municipality of Americano do Brasil. It is a significant tributary of the Paranaíba River, ultimately flowing into the expansive São Simão reservoir. The river is a principal waterway within the Paranaíba River basin. Paddling access points, boat ramps, and facilities are noted as available on planning resources, though their exact locations are not detailed. Paddlers should consult specialized mapping tools for this logistical information. The river's course runs through the subregions of Goiás, and a trail of approximately 2.2 miles runs alongside it near Edealina, suggesting accessible stretches for recreational use. The overall character of the paddling experience is not explicitly described, but its role as a feeder into a major reservoir implies varied environments, potentially ranging from flowing river sections to more placid, lake-like conditions near the reservoir. No specific hazards, seasonal recommendations, water temperature data, water quality issues, or paddling restrictions are mentioned. The river's aesthetic and any notable wildlife or cultural sights along its banks are also not described. Its geographical significance is clear as a component of a larger watershed system, but details on its specific size, shape, or unique characteristics are limited to its 58-kilometer length and its status as a tributary.