Enclave of Treviño

The Treviño Enclave 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 legal district (partido judicial) of Miranda de Ebro in the province of Burgos.