The low population density, 14.62/km², has meant that Huesca's lush valleys, rivers, and lofty mountain ranges have remained relatively pristine and unspoiled by progress.

Home to majestic scenery, the tallest mountain in the Pyrenees, the Aneto; eternal glaciers, such as at Monte Perdido; and the National Park of Ordesa and Monte Perdido, rich in flora and protected fauna. Popular with mountaineers,