Parallel to the Valira river rises a mountain range, where stand the remains of two great fortresses, the Ciutadella and Ciutat Castle (in Castellciutat), both of historic importance in the town.
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In the north, La Seu d'Urgell has borders with the municipality of les Valls de Valira, to the west with Montferrer i Castellbò where there is La Seu d'Urgell Airport (also known as Andorra-Pirineus airport), to the south-west with Ribera d'Urgellet, to the south-east with Alàs i Cerc, and to the north-east with Estamariu.
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The city is at the confluence of two rivers, the Segre and Valira, located in a plain 7 km long and 691 meters high surrounded by high mountains, such as the Cadí mountain range.
Valira | Gran Valira |