Besaya River - Río Besaya
|Birth|| Source of the Besaya , Fresno del Río |
( Campoo de Enmedio , Cantabria )
|River mouth||Saja River (to the Cantabrian Sea )|
|Basin area||465 km²|
|Medium flow||12,2 m³/s|
Source: 870 masl |
Mouth: 25 masl
The Besaya (from the Latin Bis - Salia ) is a river located in northern Spain , on the Cantabrian slope of the Iberian Peninsula , which runs through Cantabria . It is born in the Campoo-Los Valles region , near the town of Fresno del Río at an altitude of 870 m and flows into the Saja river in the municipality of Torrelavega, providing an annual flow of 390 hm³. [ 1 ]
Its 80 km long route is practically rectilinear in a south-north direction. It forms the valleys of Iguña and Buelna , in addition to collaborating, together with its tributary the Saja , in the formation of the plains of Torrelavega. The basin has a total area of 465 km² and has more than one hundred thousand inhabitants, mainly concentrated in the municipalities of Torrelavega and Los Corrales de Buelna .
The name of the river Besaya (<* V (e) is-aya) is formed, like the also Cantabrian Bisueña (<* V (e) is-on-ya), the Asturian Bisuyu / Besullo (<* V ( e) is-oy-om) and the Galicians Beseño (<* V (e) is-en-y-om), Beseña (<* V (e) is-en-ya) and Visuña (<* V (e ) is-un-ya), among others, on the root of the Paleo-European * veis-, * vis- "flow". Outside the Peninsula, the Weser and Wiesaz (Germany), the Visa (Sweden and Norway), the Vis, the Vesouze, Visance and Besançon (France), the Bisenzio in Etruria, etc.
Its route, 80 km long, is practically rectilinear in a south-north direction, crossing the municipalities of Campoo de Enmedio (where it was born), Santiurde de Reinosa , Pesquera , Bárcena de Pie de Concha , Molledo , Arenas de Iguña , Cieza , Los Corrales de Buelna , Cartes and finally Torrelavega , where it joins the Saja river providing an annual flow of around 390 hm³. [ N1 ]
The river has a length of 80 km until its confluence with the Saja river and an average flow at the mouth of 12.1 m³ / s.
The Besaya basin has an area of 465.41 km² and forms, together with the Saja river, the largest hydrographic basin in Cantabria, the Saja-Besaya System , with a total area of 1048.24 km², of which 44.4% are slopes to the Besaya. The Besaya sub-basin is delimited to the east by the Mediajo Frío and Bastrucos peaks and to the west by the Bárcena Mayor mountain range and the Ibio and Mozagro peaks ; the southern limit is marked by the watershed with the Ebro river . [ 6 ]
This area includes totally or partially the municipalities of Campoo de Enmedio , Pesquera , Santiurde de Reinosa , San Miguel de Aguayo , Bárcena de Pie de Concha , Molledo , Arenas de Iguña , Anievas , Cieza , San Felices de Buelna , Los Corrales de Buelna , Cartes and Torrelavega . Compared to other basins in Cantabria, it is a densely populated area, with three municipalities with more than five thousand inhabitants (data from 2017): [ 7 ]Torrelavega (52,034 inhabitants), Los Corrales de Buelna (10,912 inhabitants) and Cartes (5742 inhabitants). This is because it is the main road connection between Cantabria and the plateau .
The tributaries of the besaya, have a fairly short route due to the orography of the region and are affected by a strong dry season, which dries up some riverbeds during the summer months. Its main tributaries on the right are the Irbienza, Torina, León, Erecia and Casares rivers . On the left are the Bisueña, Llares, Cieza, Rebujas rivers and the Mortera stream among the most relevant.
|Branch||Tributary name||Birth||Length (km)||Cuenca (km²)||Caudal (m³/s)||Stretch|
|-||D||Hirbienza river||Confluence of the streams of Hondal del Agua and Las Nieves||9||Iguña Valley|
|-||D||Torina river||Alsa Torina reservoir||6,68|
|-||D||Bisueña river||Vernavela field (central wisdom teeth)|
|-||D||Erecia river||El Charco fountain (foothills of the Sierra del Escudo )||11|
|-||D||Casares river||Campo Collado (Anievas)|
|-||I||River of the Llares||Las Suctionas (Los Llares)||12,5|
|-||I||Cieza river||Cueto de Brenes||12||Cieza Valley|
|-||I||Rebujas river||El Pujino (Mount Pedrazo)||7,98||Buelna Valley|
|-||I||Arroyo Chico||Saint Cyprian||58||Torrelavega|
- Cantabrian Hydrographic Confederation. "Tributaries of the river Saja" . Archived from the original on October 5, 2013 . Retrieved March 1, 2014 .
- National Geographic Institute (1995). IGN maps, sheet 83 I Reinosa. MTN25 series .
- National Geographic Institute (2012). IGN maps, sheet 58 I Los Corrales de Buelna. MTN25 series .
- National Geographic Institute (1999). IGN maps, sheet 58 III Arenas de Iguña. MTN25 series .
- National Geographic Institute (1999). IGN maps, sheet 34 III Torrelavega. MTN25 series .
- Confederación Hidrográfica del Norte (1997). «Study of planning by resource exploitation systems. System 4 Saja ». North Hydrographic Plan II .
- INE (ed.). "Population figures referred to 01/01/2017" . Official Population Figures of Spanish Municipalities: Revision of the Municipal Register - Population as of January 1, 2017 .
<ref>defined in the
<references>named "SEVILLA (1984)" is not used in the previous text.