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Juvenil de sapo parteroThe amphibian inventory of the National Park and its Peripheral Protection Zone is made up of 15 species, of which 5 are Iberian endemism. Several studies on the areas of interest for the conservation of amphibians in the Iberian peninsula, have pointed out the Sierra de Guadarrama importance, and particularly the Peñalara Massif, in a number of species preservation.

This environment has a considerable diversity of species. Only in the Peñalara Massif wetlands, included in the RAMSAR list, there are usually nine species: the Common salamander (Salamandra salamandra), the Marbled triton (Triturus marmoratus), the introduced Alpine newt (Mesotriton alpestris), the Common frog (Hylo molleri), the Common toad (Bufo spinosus), the Natterjack toad (Epidalea calamita), the Common midwife toad (Alytes obstetricans) and the European tree frog (Hyla molleri). Some Iberian painted toad (Discoglossus galganoi) samples have also been detected.

It should also be noted that in the National Park live populations of species standing at the upper limit of their altitudinal range (Hyla molleri, Pelophylax perezi, Discoglossus galganoi and Triturus marmoratus). Therefore, the Park can be considered one of the most important European mountain areas in terms of its amphibian fauna. In fact, the number of species found here is greater than the total number of species known in some European countries (England, Ireland), and exceeds the other Iberian mountain systems.

The last samples taken in the National Park have revealed that the mottled newt, the common toad, the runner toad, and the frog of San Antonio, have experienced a decline in number compared to previous years. In contrast, the common frog and the Iberian frog have increased their abundance. There has also been a considerable expansion of the Alpine newt, a non-native specie from the center of the peninsula, which can be regularly observed in some Peñalara Massif wetlands.

Down below you will find a brief description of the most National Park representative amphibians:

More about nature

Exceptional trees

Magnificent specimens of different species with exceptional characteristics.


Dozens of bird species fly the skies of the Sierra, including some of the most emblematic species of the national park.


The species that inhabit the mountain rivers, some of them unfortunately introduced.


The Sierra de Guadarrama has a high richness of amphibian species.

Peñalara: glaciology and glacial vestiges

The best glacial remains of Sierra de Guadarrama


Information on the reptiles of the Sierra de Guadarrama, some of them very little known.

Peñalara Massif wetlands

The Peñalara Massif is the site with the highest concentration of high mountain lakes and ponds in the Sierra de Guadarrama.

Sistema de observación meteorológica

×* There is no translation available.* El parque nacional cuenta con una red de estaciones meteorológicas de alta montaña.


Fungi play a fundamental role in the ecology of the Sierra de Guadarrama.

The Sierra de Guadarrama Climate

Description of the climatology of the national park.

Sierra de Guadarrama Rivers

Mountain rivers and streams are an essential feature of the national park.

Estado del tiempo

×* There is no translation available.* Boletín de las últimas 48h, previsión del peligro de aludes (si está en vigor) y predicción meteorológica.

La Pedriza: a particular granite batholith

La Pedriza is a singular mountain relief, unique in the Iberian Peninsula.

Geology and Lithology

Rock types and geological history of the Sierra de Guadarrama.


The little-known fauna of the Sierra de Guadarrama.


Dozens of species growing on trees, on rocks, covering the ground.....


Dozens of mammal species inhabit the Sierra de Guadarrama.


Around 1680 species and subspecies of plants inhabit the national park.

Vegetation and Natural Systems

Get to know the vegetation of the national park, with 8 natural systems represented.

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