Picos de Urbión
Encyclopedia
Picos de Urbión are a mountain massif in the Sistema Ibérico
Sistema Ibérico
The Sistema Ibérico or Iberian System is one of the main systems of mountain ranges in Spain.It is a vast and complex system of mountain chains and massifs located in the central regions of the Iberian Peninsula, but reaching almost the Mediterranean coast in the Land of Valencia in the east.From...

, Spain
Spain
Spain , officially the Kingdom of Spain languages]] under the European Charter for Regional or Minority Languages. In each of these, Spain's official name is as follows:;;;;;;), is a country and member state of the European Union located in southwestern Europe on the Iberian Peninsula...

, limited by the Sierra de Neila and Sierra Cebollera of the same range. The ridge's highest summit, Pico Urbión, is 2,228 m) is one of the highest points in the 500 km long Sistema Ibérico.

The Picos de Urbión are located in the municipal terms of Viniegra de Abajo
Viniegra de Abajo
Viniegra de Abajo is a municipality of La Rioja .Viniegra de Abajo is between the Camero Nuevo and the Sierra de la Demanda, in what is called the subregion of High Najerilla....

, Duruelo de la Sierra
Duruelo de la Sierra
Duruelo de la Sierra is a municipality of Spain, in the province of Soria, Autonomous Community of Castile and León - Population :...

 and Covaleda
Covaleda
Covaleda is a municipality located in the province of Soria, Castile and León, Spain. According to the 2004 census , the municipality has a population of 1,924 inhabitants.-References:* * * *...

, between the provinces of Soria and Burgos in Castile and León
Castile and León
Castile and León is an autonomous community in north-western Spain. It was so constituted in 1983 and it comprises the historical regions of León and Old Castile...

 and La Rioja (Spain)
La Rioja (Spain)
La Rioja is an autonomous community and a province of northern Spain. Its capital is Logroño. Other cities and towns in the province include Calahorra, Arnedo, Alfaro, Haro, Santo Domingo de la Calzada, and Nájera.-History:...

. The Duero River and the Najerilla
Najerilla (river)
The river Najerilla is a tributary of the river Ebro, Spain's most voluminous river. The Najerilla rises in the province of Burgos and then flows through La Rioja....

 have their source in these mountains.
These mountain ranges divide the Ebro
Ebro
The Ebro or Ebre is one of the most important rivers in the Iberian Peninsula. It is the biggest river by discharge volume in Spain.The Ebro flows through the following cities:*Reinosa in Cantabria.*Miranda de Ebro in Castile and León....

 and Duero basins.

Its relief was modelled by glacier
Glacier
A glacier is a large persistent body of ice that forms where the accumulation of snow exceeds its ablation over many years, often centuries. At least 0.1 km² in area and 50 m thick, but often much larger, a glacier slowly deforms and flows due to stresses induced by its weight...

s, giving origin to lakes like the Laguna de Urbión or the Laguna Negra, both good places for hiking.

The highest peaks of the range are usually covered in snow between October and May every year. The Sierra de la Demanda
Sierra de la Demanda
Sierra de la Demanda is a mountain sub-range situated in the northern Iberian Peninsula.-Geography:The Sierra de la Demanda is part of the western section of the larger Sistema Ibérico...

is located north of these mountains.

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