# Mesa (river)

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River in Spain

Mesa River (Río Mesa) View of the Mesa River in Jaraba The watershed of the Piedra within the Ebro basin Location Country Spain Physical characteristics Source • location Sierra de Solorio, Guadalajara Province Castile-La Mancha • elevation 1,272 m (4,173 ft) Mouth • location Piedra River La Tranquera Dam, Aragón • coordinates 41°14′33″N 1°48′37″W / 41.24250°N 1.81028°W / 41.24250; -1.81028 • elevation 691 m (2,267 ft) Length 54.17 kilometres (33.66 mi) Basin features Progression Piedra - Jalón- Ebro - Mediterranean Sea River system Ebro

The **Mesa River** ([Spanish](/source/Spanish_language): *Río Mesa*) is a river in the [Sierra de Solorio](/source/Sierra_de_Solorio) range area, [Iberian System](/source/Iberian_System), [Spain](/source/Spain). It is a tributary of the [Piedra River](/source/Piedra_River%2C_Spain).

There are [trout](/source/Trout) in the river, but the population of the [endangered](/source/Endangered) [European freshwater crayfish](/source/Austropotamobius_pallipes) in the river has practically disappeared owing to the introduction of the [North American](/source/North_America) [signal crayfish](/source/Signal_crayfish) (*Pacifastacus leniusculus*).[1]

## Geography

It rises near [Selas](/source/Selas), in the [province of Guadalajara](/source/Guadalajara_(province)), [Castile-La Mancha](/source/Castile-La_Mancha). The Mesa has an irregular flow, due to the long dry season of the summer months, with often heavy rainfall in the spring and autumn. It receives much water at [Jaraba](/source/Jaraba), where there are [thermal springs](/source/Thermal_springs).[2]

The Mesa River cuts a deep [canyon](/source/Canyon), locally known as *Hoces del Río Mesa* (Mesa River Gorges) or *Valle del Mesa* (Mesa Valley).[3]

## See also

- [List of rivers of Spain](/source/List_of_rivers_of_Spain)

## References

1. **[^](#cite_ref-1)** [Río Piedra, Entorno Natural en la Provincia de Zaragoza](http://www.turismodezaragoza.es/provincia/naturaleza/rios/rio-piedra.html)

1. **[^](#cite_ref-2)** [Balnearios de Jaraba](http://www.jaraba.com/html/balnearios.html) [Archived](https://web.archive.org/web/20130509194204/http://www.jaraba.com/html/balnearios.html) 2013-05-09 at the [Wayback Machine](/source/Wayback_Machine)

1. **[^](#cite_ref-3)** [Hoces del Río Mesa](http://www.turismocalatayud.com/que_hacer_ficha.php?tipo=ficha&idtipo=56&idficha=70)

## External links

- Media related to [Mesa River](https://commons.wikimedia.org/wiki/Category:Mesa_River) at Wikimedia Commons

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Adapted from the Wikipedia article [Mesa (river)](https://en.wikipedia.org/wiki/Mesa_(river)) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Mesa_(river)?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.