Miranda de Ebro in the context of "Bayas (river)"

The Ebro (Spanish and Basque [ˈeβɾo] ; Catalan: Ebre, Western: [ˈeβɾe], Eastern: [ˈeβɾə]) is a river of the north and northeast of the Iberian Peninsula, in Spain. It rises in Cantabria and flows 930 kilometres (580 mi), almost entirely in an east-southeast direction. It flows into the Mediterranean Sea, forming a delta in the Terres de l'Ebre region, in southern Catalonia. In the Iberian peninsula, it ranks second in length after the Tagus and second in discharge volume, and drainage basin, after the Douro. It is the longest river entirely within Spain; the other two mentioned flow into Portugal.

The Ebro flows through many cities (Spanish: ciudades): Reinosa in Cantabria; Frías and Miranda de Ebro in Castile and León; Haro, Logroño, Calahorra, and Alfaro in La Rioja; Tudela in Navarre; Alagón, Utebo, and Zaragoza in Aragon; and Flix, Móra d'Ebre, Benifallet, Tivenys, Xerta, Aldover, Tortosa, and Amposta in the province of Tarragona (Catalonia).
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The Treviño Enclave (Basque: Trebiñuko Barrendegia Spanish: Enclave de Treviño) in northern Spain is part of the territory of the province of Burgos (part of Castile and León), but is completely surrounded by the territory of the Basque Country province of Álava. Thus, it is an enclave of the Basque Country and an exclave of Castile and León. It consists of two municipalities—Condado de Treviño and La Puebla de Arganzón—and is part of the Judicial district (partido judicial) of Miranda de Ebro in the province of Burgos.

The enclave consists of the municipalities of Condado de Treviño, with an area of 260.71 square kilometres (100.66 sq mi) and a 2009 population of 1,432, giving it a population density of 5.49 per square kilometre (14.2/sq mi) and La Puebla de Arganzón, with an area of 18.87 square kilometres (7.29 sq mi) and a 2009 population of 529, giving it a population density of 28.03 per square kilometre (72.6/sq mi). This gives the enclave as a whole an area of 279.58 square kilometres (107.95 sq mi) and a 2009 population of 1,961, for a population density of 6.77 per square kilometre (17.5/sq mi).