Ribeirão Couro de Boi is a stream, or córrego, located in the state of Paraná, Brazil. It flows through the southern region of the country and has a total length of approximately 12 kilometers. The waterway has one distributary and one tributary. Geographically, it is situated near the locality of Pôsto de Monta and the village of Sertanópolis. For paddlers, the stream's character is defined by its modest size and its course through the Paraná landscape. The stream's proximity to these named settlements suggests it flows through a populated rural area. There is no indication of any restrictions on paddling activities. The length of 12 kilometers presents an opportunity for a day trip, though the exact nature of the route, including flow characteristics and potential portages, would require local reconnaissance. The surrounding area, part of the broader Paraná region, likely features a mix of agricultural and natural landscapes typical of southern Brazil.