The Rio das Furnas system in Minas Gerais, Brazil, is centered around the massive Furnas Reservoir, a major hydroelectric project that has created an extensive and complex aquatic environment. This system, often referred to as Lago de Furnas, is a vast man-made lake renowned for its scenic beauty, particularly in its canyon sections near Capitólio. The reservoir was constructed primarily for electricity generation, but it has developed into a significant fishery. The aquatic ecosystem supports a diverse fish population, drawing anglers to its waters.