The DO area is located in the province of Huesca in the autonomous Spanish region of Aragon
. The name Somontano literally means "under the mountains" and indicates that the area is located in the foothills of the Pyrenees near the French border. The climate is almost ideal for wine growing, with cold winters and hot summers, relatively abundant rainfall, plenty of sun during the day and cool nights. This was already recognized by the monasteries in the Middle Ages, which founded viticulture here. With around 100,000 hectares of vineyards, a peak was reached towards the end of the 19th century. A good part of the wines was exported to South America. The Lalanne family from Bordeaux was appointed purveyor to the court of Alfonso XIII (1886-1941). However, the phylloxera
put an end to this and there was a great decline in viticulture.