Asón-Agüera
The Asón-Agüera comarca is a historical region of Cantabria, Spain. It is located in the upper courses of the Asón and Agüera rivers, near the border with Vizcaya in the Basque Country. The comarca encompasses the basin of the Asón river and its tributaries such as the Gándara. The region was part of the historical territories of the Valley of Soba and Ruesga Villaverde, and the Merindad de Vecio (Junta de Parayas, Villas Laredo, Seña and clean, and Valle de Guriezo). At the start of 2018, the total population of the region (according to the INE) was  15,087 inhabitants (see table). The three most populated centers are: Ampuero (4,219), Ramales de Victoria (2,881) and Guriezo (2,347). Lesser populated places are: Valle de Villaverde (286) Arredondo (470) and Rasines (952). Geography. Asón Valley is known for its rugged solid limestone, which house inside caving extraordinary wealth and ancient forests of beech, oak and holm undoubtedly the most notable in the eastern part of Cantabria. Soba Valley is crossed by the Gandara River, a tributary of the Assos River. Historical and municipal limits of Soba exceed those of geographically understood valley, and also include the headwaters of the Asón , the right bank of the valley of the river Miera (Valdició village in the municipality of Soba) and the left bank of the valley of the river Calera, bordering with the province of Vizcaya. Highlights. Archaeological sites: