Aller (Asturian: Ayer) is a municipality in the Autonomous Community of the Principality of Asturias, Spain. It is bordered on the north by Mieres, on the south by the province of León, on the east by Laviana, Caso, and Sobrescobio, and on the west by Lena.
Upriver is the municipal capital, Cabañaquinta, in the direction of which the landscape gradually transforms into a high mountain valley, which culminates in the San Isidro Pass (1,520 m), which lies along the border with the province of León. The beauty of the area and the ski area located nearby has led to a great increase in tourism in recent years, distinguishing the locality of Felechosa, 13 km from the peak.
Among the natural beauties of the region are the ravines of the Pino and Aller rivers, huge gorges carved into the foot of the mountains. The municipality also offers a wide variety of routes that follow the paths of the traditional herdsmen from the villages at the foot of the mountains up the slopes. Famous peaks include the Torres (2,100 m), the Toneo, Peña Redonda, the Retriñón, and Peña Mea.
|Population of Aller (1877-2007)|
There are also several livestock festivals in Cabañaquinta, including one in March the Friday before Saint Joseph's Day, one in honor of the rosary the first Friday in October, and one in honor of Saint Andrew the third Friday of November.