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The Lozoya River () is a river flowing near the centre of
The Lozoya has been affected by the construction of several dams and
Hydric resources
Rivers of Spain Tributaries of the Jarama {{Spain-river-stub
The Lozoya River () is a river flowing near the centre of 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")
, ...
. It originates at a high altitude in the Sistema Central
The Central System, Spanish and pt, Sistema Central, is one of the main systems of mountain ranges in the Iberian Peninsula. The 2,592 m high Pico Almanzor is its highest summit.
The Central System is located just north of the 40th parallel a ...
and cuts downward through steep rocks to flow into the Jarama River, a major tributary
A tributary, or affluent, is a stream or river that flows into a larger stream or main stem (or parent) river or a lake. A tributary does not flow directly into a sea or ocean. Tributaries and the main stem river drain the surrounding drai ...
of the Tajo
The Tagus ( ; es, Tajo ; pt, Tejo ; see below) is the longest river in the Iberian Peninsula. The river rises in the Montes Universales near Teruel, in mid-eastern Spain, flows , generally west with two main south-westward sections, to e ...
, the longest river
A river is a natural flowing watercourse, usually freshwater, flowing towards an ocean, sea, lake or another river. In some cases, a river flows into the ground and becomes dry at the end of its course without reaching another body of ...
on the Iberian Peninsula
The Iberian Peninsula (),
**
* Aragonese and Occitan: ''Peninsula Iberica''
**
**
* french: Péninsule Ibérique
* mwl, Península Eibérica
* eu, Iberiar penintsula also known as Iberia, is a peninsula in southwestern Europe, def ...
.
Water use
The Lozoya has been affected by the construction of several dams and reservoir
A reservoir (; from French ''réservoir'' ) is an enlarged lake behind a dam. Such a dam may be either artificial, built to store fresh water or it may be a natural formation.
Reservoirs can be created in a number of ways, including contr ...
s that supply almost 50 percent of the water for Madrid
Madrid ( , ) is the capital and most populous city of Spain. The city has almost 3.4 million inhabitants and a metropolitan area population of approximately 6.7 million. It is the second-largest city in the European Union (EU), and ...
's metropolitan area. In fact, 50 percent of the river's length is taken up by reservoirs
A reservoir (; from French ''réservoir'' ) is an enlarged lake behind a dam. Such a dam may be either artificial, built to store fresh water or it may be a natural formation.
Reservoirs can be created in a number of ways, including control ...
. Other uses of the river water such as forestry and agriculture have had much less physical impact. Because the impact of construction on the Lozoya has been so great, the river is now rated as Heavily Modified Water Body (HMWB) based on the European Synthesis Project.
See also
*List of rivers of Spain
This is an incomplete list of rivers that are at least partially in Spain. The rivers flowing into the sea are sorted along the coast. Rivers flowing into other rivers are listed by the rivers they flow into. Rivers in the mainland Iberian Peninsu ...
*El Atazar Dam
El Atazar Dam is an arch dam built near Madrid, Spain on the Lozoya River, very close to where the Lozoya joins the Jarama. The curved design of the dam is optimum for the narrow gorge in which it was built to retain water in the reservoir. Arch ...
Footnotes
External links
Hydric resources
Rivers of Spain Tributaries of the Jarama {{Spain-river-stub