The Obarenes Mountains ( es, Montes Obarenes) is a

mountain range A mountain range or hill range is a series of mountains or hills arranged in a line and connected by high ground. A mountain system or mountain belt is a group of mountain ranges with similarity in form, structure, and alignment that have arise ...

in northern

Spain , image_flag = Bandera de España.svg , image_coat = Escudo de España (mazonado).svg , national_motto = ''Plus ultra'' (Latin)(English: "Further Beyond") , national_anthem = (English: "Royal March") , i ...

. The range has an approximate length of 30 km, and an average altitude of 800 and 900 meters. It extends from Hoces del Ebro in

Sobrón Sobrón is a hamlet and '' concejo'' in the municipality of Lantarón, in Álava province, Basque Country, Spain. Sobrón was the site of a spa resort A destination spa or health resort is a resort centered on a spa, such as a mineral spa ...

(Burgos and Álava provinces) to the Conchas de Haro in

La Rioja La Rioja () is an autonomous community and province in Spain, in the north of the Iberian Peninsula. Its capital is Logroño. Other cities and towns in the province include Calahorra, Arnedo, Alfaro, Haro, Santo Domingo de la Calzada, and N� ...

province, where the

Ebro River , name_etymology = , image = Zaragoza shel.JPG , image_size = , image_caption = The Ebro River in Zaragoza , map = SpainEbroBasin.png , map_size = , map_caption = The Ebro ...

separates it from the

Cantabrian Mountains , etymology=Named after the Cantabri , photo=Cordillera Cantábrica vista desde el Castro Valnera.jpg , photo_caption=Cantabrian Mountains parallel to the Cantabrian Sea seen from Castro Valnera in an east-west direction. In the background, th ...

References

Mountain ranges of La Rioja (Spain) Mountain ranges of the Basque Country (autonomous community) {{Spain-geo-stub