Passy National Nature Reserve
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The Passy National Nature Reserve is a
nature reserve A nature reserve (also known as a wildlife refuge, wildlife sanctuary, biosphere reserve or bioreserve, natural or nature preserve, or nature conservation area) is a protected area of importance for flora, fauna, or features of geological or ...
located on the face of the
Aiguilles Rouges The Aiguilles Rouges ("Red Needles") are a crystalline mountainous massif of the French Prealps, opposite the Mont Blanc Massif. The colour of the iron rich gneiss (metamorphique) mountains gives the range its name. The highest summit is the Aig ...
and Mont Blanc mountain ranges, in the middle of the
Arve The Arve (french: L'Arve, ) is a river in France (''département'' of Haute-Savoie), and Switzerland (canton of Geneva). A left tributary of the Rhône, it is long, of which 9 km in Switzerland. Its catchment area is , of which 80 km2 ...
valley, in the Haute-Savoie metropolitan department of
France France (), officially the French Republic ( ), is a country primarily located in Western Europe. It also comprises of Overseas France, overseas regions and territories in the Americas and the Atlantic Ocean, Atlantic, Pacific Ocean, Pac ...
. The have been protected since 1980; the reserve assures a continuous link of
protected area Protected areas or conservation areas are locations which receive protection because of their recognized natural, ecological or cultural values. There are several kinds of protected areas, which vary by level of protection depending on the ena ...
s between the Sixt-Passy National Nature Reserve and the
Aiguilles Rouges National Nature Reserve The Aiguilles Rouges National Nature Reserve is a nature reserve located in the Aiguilles Rouges mountain range in the Haute-Savoie department in southeastern France. Localisation In the Haute-Savoie department, on the northern side of the ...
. The natural history of the reserve mirrors that of the surrounding mountains. The young rock
cliff In geography and geology, a cliff is an area of rock which has a general angle defined by the vertical, or nearly vertical. Cliffs are formed by the processes of weathering and erosion, with the effect of gravity. Cliffs are common on co ...
s of the Fiz mountain range dominate the former Pormenaz mountain range. The tectonic activity of the Alps continues to bring the Fiz rock cliffs closer to the
silicious Silicon dioxide, also known as silica, is an oxide of silicon with the chemical formula , most commonly found in nature as quartz and in various living organisms. In many parts of the world, silica is the major constituent of sand. Silica is one ...
rocks of the Pormenaz. This mineralogical history caused a great diversity of land areas such as
meadow A meadow ( ) is an open habitat, or field, vegetated by grasses, herbs, and other non-woody plants. Trees or shrubs may sparsely populate meadows, as long as these areas maintain an open character. Meadows may be naturally occurring or artifi ...
s,
heaths A heath () is a shrubland habitat found mainly on free-draining infertile, acidic soils and characterised by open, low-growing woody vegetation. Moorland is generally related to high-ground heaths with—especially in Great Britain—a cooler a ...
, and
wetland A wetland is a distinct ecosystem that is flooded or saturated by water, either permanently (for years or decades) or seasonally (for weeks or months). Flooding results in oxygen-free (anoxic) processes prevailing, especially in the soils. The ...
s, which are inhabited by numerous species such as
eagle Eagle is the common name for many large birds of prey of the family Accipitridae. Eagles belong to several groups of genera, some of which are closely related. Most of the 68 species of eagle are from Eurasia and Africa. Outside this area, just ...
s and
Alpine Ibex The Alpine ibex (''Capra ibex''), also known as the steinbock, bouquetin, or simply ibex, is a species of wild goat that lives in the mountains of the European Alps. It is a sexually dimorphic species: males are larger and carry longer, curved h ...
es. This landscape testifies to the
geologic history Geology () is a branch of natural science concerned with Earth and other astronomical objects, the features or rocks of which it is composed, and the processes by which they change over time. Modern geology significantly overlaps all other Eart ...
of the area: the of vertical walls of the
calcareous Calcareous () is an adjective meaning "mostly or partly composed of calcium carbonate", in other words, containing lime or being chalky. The term is used in a wide variety of scientific disciplines. In zoology ''Calcareous'' is used as an adje ...
cliffs of the Fiz, a marvel of nature, tell the 90 million year shared history of the oceans and the
Alps The Alps () ; german: Alpen ; it, Alpi ; rm, Alps ; sl, Alpe . are the highest and most extensive mountain range system that lies entirely in Europe, stretching approximately across seven Alpine countries (from west to east): France, Sw ...
.


References


External links

* {{in lang, fr}
Association des Amis de la Réserve Naturelle de Passy
Official Site Nature reserves in France Geography of Haute-Savoie Protected areas established in 1980 Tourist attractions in Haute-Savoie