• Source: Gignoux Lake

Gignoux Lake (2329 m above sea level), also known as the Seven Colors Lake, is located in France in the Provence-Alps-French Riviera region at the border with the Susa Valley (Piedmont) territory. The lake is in the French department of the Upper Alps, to the east of Mount Chenaillet (2650 m a.s.l.) and to the north of the Cerveyrette Valley.




Characteristics


The lake covers an area of about 2 hectares. The Cima Saurel (2449 m a.s.l.) and the Mount Gimont (2648 m a.s.l.) form the northern side of the lake and are part of the border with Italy. The lake is set in an arid landscape with a view of Cervières (1620 m a.s.l.), the Chaberton (3 131 m a.s.l.) and the Fonts Valley.




= Geology of the lake

=
Gignoux Lake is located in a habitat formed by scree and moraine. With basalt and gabbro outlining an oceanic crust, a sign of a deep (3,000 m) and ancient ocean (150 million years ago): the Ligurian Tethys also called the Piedmont-Liguria Ocean (a paleo-ocean).




Fauna and flora


The site has 14 important plant species. Among these, 4 are protected nationally and 7 only in the Provence-Alps-French Riviera region:

Mud sedge (Carex limosa) -
Sweet grass (Hierochloe odorata) -
Aethionema thomasianum -
Lesser Bladderwort (Utricularia minor) - -
Water pesse (Hippuris vulgaris) -
Berardia (Berardia subacaulis) -
Rolland's bulrush (Trichophorum pumilum) -
Artemisia atrata -
Androsace septentrionalis -
The Alpine mock privet (Chamorchis alpina) -
Alpine water lentil (Potamogeton alpinus) -
Cardamine Plumieri (Cardamine plumieri) -
Two-stemmed carex (Carex diandra) -
Alpine rush (Trichophorum alpinum) -




= Fauna of the territory

=
Among mammals, the most present species is the deer. Among nesting bird species, there are the Common Quail, the Ortolan bunting, the rock partridge and the black grouse.




Notes


^ a b Il lago Gignoux (dei 7 colori) | Una meraviglia tra le Alte Alpi, su Zen Hikers, 29 agosto 2022. URL consultato il 29 agosto 2022.
^ Le lac Gignoux, le lac Noir et le lac des Sarailles : randonnée dans la vallée de la Cerveyrette, su www.photos-provence.fr. URL consultato il 29 agosto 2022.
^ Lac Gignoux (2329m) (Briançonnais, Hautes-Alpes), su www.lacsdemontagne.fr. URL consultato il 30 agosto 2022.
^ a b Emeric DROUOT, Jean-Charles VILLARET, Luc GARRAUD, Stéphane BELTRA, Alisson LECLERE, Sylvain ABDULHAK, Lionel QUELIN, Sonia RICHAUD, Jérémie VAN ES, VERSANT ADRET DE LA CERVEYRETTE, DU LAC DES SARAILLES AUX TRAVERSES - VERSANT SUD-EST DU CHENAILLET (PDF).[1]




References






See also


Provence-Alps-French Riviera
Upper Alps
Susa Valley




Other works


Wikimedia Commons contains images or other files about Gignoux Lak

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