Not that important tiny detail: Oiapoque and Chuí are not referenced as the rivers, but as the northest (Oiapoque) and southest (Chuí) cities of Brazil. "from O

Not that important tiny detail: Oiapoque and Chuí are not referenced as the rivers, but as the northest (Oiapoque) and southest (Chuí) cities of Brazil. "from Oiapoque to Chuí" is a popular expression to refer to the whole extension of brazilian territory.