evidence: Artigas is one of the nineteen departments that make up the Oriental Republic of Uruguay. Its capital is the homonymous city Artigas, a neighbor of the Brazilian city of Quaraí. [...] It has two territories (called "contested limits" by Uruguayan geography maps), in dispute with Brazil, which are: Rincón de Artigas and the so-called Brazilian island. [...] The department of Artigas is located in the northwest area of the country, its limits are: to the north and northeast: the Cuareim river, which separates it from the state of Rio Grande do Sul, belonging to Brazil; to the west: the Uruguay River, which separates it from the province of Corrientes, belonging to Argentina; to the south: the Yacuy stream, an imaginary dividing line of 13 km between this stream and the Arapey Chico river, and the Belén mountain range, serving as the border with the department of Salto; and finally to the east: the Invernada stream and its tributaries the Maneco stream and the Caraguatás stream, which serve as the border with Brazil and the territory known as Rincón de Artigas (contested limit). Its surface is 11,928 km², which corresponds to 6.8% of the country's surface.