Segre (river) in the context of "Ilergetes"

Llívia (Catalan pronunciation: [ˈʎiβiə]; Spanish: Llivia Spanish: [ˈʎiβja] ) is a town in the comarca of Cerdanya, province of Girona, Catalonia, Spain. It is a Spanish exclave surrounded by the French département of Pyrénées-Orientales. It is named after Livia, the wife of Augustus and matriarch of the Julio-Claudian dynasty. Because of a technicality in the Treaty of the Pyrenees, signed in 1659, that transferred only "villages" in the Pyrenees to France, Llívia, which was a "town", remains under Spanish control. The Segre river, a tributary of the Spanish Ebro, flows through Llívia. It has a population of 1,560 (register office, 2024) .

Llívia is separated from the rest of Spain by a corridor approximately 1.6 km (1.0 mile) wide, which includes the French communes of Ur and Bourg-Madame. This corridor is traversed by a road, owned by both France (where it is part of Route nationale 20 and RD68) and Spain (where it is part of N-154). Before the implementation of the Schengen Area in 1995, it was considered a "neutral road", a custom-free route with access for both French and Spanish people; since 1995, there have been no formal borders. The two countries share a hospital in Puigcerdà (which lies close to Llívia), as well as other local initiatives.

42°30′N 1°58′E / 42.500°N 1.967°E / 42.500; 1.967French Cerdagne (Catalan: Alta Cerdanya, IPA: [ˈaltə səɾˈðaɲə]) is the northern half of Cerdanya, which came under French control as a result of the Treaty of the Pyrenees in 1659, while the southern half remained in Spain (as a part of Catalonia). Catalans often refer to French Cerdagne as Upper Cerdanya (Catalan: Alta Cerdanya; Occitan: Alta Cerdanha). It is the only French territory on the Iberian Peninsula, as it is located on the south side of the Pyrenees Range between France and Spain. For example, the Segre river, which goes west and then south to meet the Ebro, has its source in the French Cerdagne. An inadvertent result of the Treaty of the Pyrenees is the Spanish exclave of Llívia (the small uncolored area in the map) which is sovereign Spanish territory surrounded by French Cerdagne.

French Cerdagne has no special status inside France, simply forming a physiographic region within the department of Pyrénées-Orientales, unlike the Spanish part of Cerdanya, which is officially a Catalan comarca called simply Cerdanya. In France, the French area is referred to as either Cerdagne française (i.e. "French Cerdagne"), Haute-Cerdagne (i.e. "Upper Cerdagne") or just Cerdagne.

The Gran Valira (Catalan pronunciation: [ˈɡram baˈliɾa]) is the largest river in Andorra. It flows through the capital, Andorra la Vella, and exits the country in the south near the Spain–Andorra road border crossing.

The Gran Valira is a tributary to the Segre, which in turn is a tributary to the Ebro. It flows into the Segre in La Seu d'Urgell. Its main tributaries are the Valira d'Orient, the Valira del Nord and the Madriu. The Valira river system is 35 kilometres (22 mi) long.

Segrià (Western Catalan: [seɣɾiˈa]) is a comarca (county) in Catalonia (Spain). It is located in the western region of Ponent, bordering Aragon. As of 2001, over two thirds of its population live in the capital city of Lleida, which is also Catalonia's sixth largest municipality, and remains the most populated comarca in the Ponent region and the Lleida province. It takes its name from the river Segre.

The County of Cerdanya (Catalan: Comtat de Cerdanya, IPA: [kumˈtad də səɾˈðaɲə]; Latin: Comitatus Ceritaniae; Spanish: Condado de Cerdaña, French: Comté de Cerdagne) was one of the Catalan counties formed in the last decades of the 8th century by the Franks in the Marca Hispanica. The original Cerdanya consisted of the valley of the upper Segre. Today Cerdanya is a Catalan comarca.