Category:Rail tunnels in Cantabria
Provinces of Spain: Cantabria‡ · Madrid‡ · Autonomous cities:
‡: uniprovincial autonomous communities.
‡: uniprovincial autonomous communities.
Autonomous communities of Spain: Andalusia · Aragon · Cantabria · Castile and León · Castilla–La Mancha · Catalonia · Galicia · Community of Madrid · Valencian Community · Autonomous cities: