Alto Aragón (literally, Upper Aragon or Highlands of Aragon in English; compare Upper Navarre, Upper Rioja) is the northernmost territories or highlands of Aragon, flanking the Pyrenees and includes the Aneto Mountain, the highest peak in the entire Pyrenean chain. The term Alto Aragón, or highlands, is used to contrast with the Bajo Aragón, referring to the lowlands or flat plains of Aragon which roughly begins around the Somontano county of Huesca stretching south to the Ebro river basin.
The term Alto Aragon is also used interchangeably to refer to the Province of Huesca when speaking of northern Aragon.
