Editing Catalonia (section)

=== Hydrography ===
{{See also|List of rivers of Catalonia}}
[[File:Aerea estany de banyoles.png|thumb|[[Lake of Banyoles]] ]]
[[File:Tossa de Mar Buchten 1.JPG|thumb|[[Tossa de Mar]], Costa Brava]]
Most of Catalonia belongs to the [[Mediterranean Basin]]. The Catalan hydrographic network consists of two important basins, the one of the [[Ebro]] and the one that comprises the internal basins of Catalonia (respectively covering 46.84% and 51.43% of the territory), all of them flow to the [[Mediterranean]]. Furthermore, there is the [[Garona]] river basin that flows to the [[Atlantic Ocean]], but it only covers 1.73% of the Catalan territory.

The hydrographic network can be divided in two sectors, an occidental slope or Ebro river slope and one oriental slope constituted by minor rivers that flow to the Mediterranean along the Catalan coast. The first slope provides an average of {{convert|18700|hm3|cumi|lk=on|abbr=off}} per year, while the second only provides an average of {{convert|2020|hm3|cumi|abbr=on}}/year. The difference is due to the big contribution of the Ebro river, from which the [[Segre (river)|Segre]] is an important tributary. Moreover, in Catalonia there is a relative wealth of groundwaters, although there is inequality between ''[[comarca|comarques]]'', given the complex geological structure of the territory.<ref name="GEC clima">{{cite web|url=http://www.enciclopedia.cat/enciclop%C3%A8dies/gran-enciclop%C3%A8dia-catalana/EC-GEC-0016439.xml|title=Catalunya: El clima i la hidrografia|language=ca|work=l'Enciclopèdia|location=Barcelona|editor=Gran Enciclopedia Catalana}}{{dead link|date=January 2014}}</ref> In the Pyrenees there are many small lakes, remnants of the [[Quaternary glaciation|ice age]]. The biggest are the [[lake of Banyoles]] and the recently recovered [[lake of Ivars]].

The Catalan coast is almost rectilinear, with a length of {{convert|580|km}} and few [[landform]]s—the most relevant are the [[Cap de Creus]] and the [[Gulf of Roses]] to the north and the [[Ebro Delta]] to the south. The [[Catalan Coastal Range]] hugs the coastline, and it is split into two segments, one between [[L'Estartit]] and the town of [[Blanes]] (the [[Costa Brava]]), and the other at the south, at the Costes del [[Garraf]].

The principal [[List of rivers of Catalonia|rivers in Catalonia]] are the [[Ter (river)|Ter]], [[Llobregat]], and the [[Ebro]] (Catalan: {{lang|ca|Ebre}}), all of which run into the [[Mediterranean]].