Aller

Aller is an administrative division in Asturias that spans across valleys and mountainous terrain, characterized throughout by extensive forests and limestone rock formations. The territory contains varied elevations and natural geographic features.

During the 20th century, the region became a major coal mining center with numerous active mines that shaped economic activity and community development. Mining remained the dominant industry before its eventual decline.

The villages showcase traditional Asturian stone houses and granaries called hórreos, which remain defining features of how communities have built their homes over generations.

Regional buses link the area to larger Asturian cities, while driving provides access to remote mountain areas and hiking trails throughout the territory. Weather conditions are best for exploration during warmer months.

The Ubiña massif towers above 2,000 meters, creating a natural boundary between the provinces of Asturias and León. This prominent peak serves as a visible landmark across the landscape.