The Asón is a river in Northern Spain, flowing through the Autonomous Community of Cantabria and flows into the Cantabrian Sea in the town of Colindres, where it forms the Santoña estuary which is the most important SPA in the north of Spain.
The Asón is a river in Northern Spain. A river in Northern Spain is flowing through the Autonomous Community of Cantabria. The Asón flows into the Cantabrian Sea in the town of Colindres. It forms the Santoña estuary. This Santoña estuary is the most important SPA in the north of Spain.