Editing Geography of Spain (section)

===Lowland regions===
[[Image:Echium Wildpretii at The Teide.jpg|thumb|[[Teide]], the highest mountain in Spain ([[Tenerife]], [[Canary Islands]])]]

The major lowland regions are the Andalusian Plain in the southwest, the Ebro Basin in the northeast, and the coastal plains.<ref name=":1" /> The Andalusian Plain is essentially a wide river valley through which the Río [[Guadalquivir]] flows.<ref name=":1" /> The river broadens out along its course, reaching its widest point at the Golfo de Cadiz.<ref name=":1" /> The Andalusian Plain is bounded on the north by the Sierra Morena and on the south by the Sistema Penibético; it narrows to an apex in the east where these two mountain chains meet.<ref name=":1" /> The Ebro Basin is formed by the Río Ebro valley, contained by mountains on three sides—the Sistema Ibérico to the south and west, the Pyrenees to the north and east, and their coastal extensions paralleling the shore to the east.<ref name=":1" /> Minor low-lying river valleys close to the Portuguese border are located on the Tagus and the Río Guadiana.<ref name=":1" />

The Coastal Plains regions are narrow strips between the coastal mountains and the seas.<ref name=":1" /> They are broadest along the Golfo de Cádiz, where the coastal plain adjoins the Andalusian Plain, and along the southern and central eastern coasts.<ref name=":1" /> The narrowest coastal plain runs along the Bay of Biscay, where the Cordillera Cantábrica ends close to shore.<ref name=":1" />