Les Grangettes

Banc de sable
Radeau avec sternes
Roselière et lac Savies

Les Grangettes

  • Country: 
  • Site number: 
  • Area: 
    6,342.2 ha
  • Designation date: 
  • Coordinates: 
    46°18'N 00°58'W
Materials presented on this website, particularly maps and territorial information, are as-is and as-available based on available data and do not imply the expression of any opinion whatsoever on the part of the Secretariat of the Ramsar Convention concerning the legal status of any country, territory, city or area, or of its authorities, or concerning the delimitation of its frontiers or boundaries.


The Site includes the eastern part of Lake Geneva and the natural part of the Rhône river delta, and features open water, reedbeds, marshes, and riparian woodland. Despite the loss of its natural dynamics since the containment of the Rhône, the Site remains an exceptional landscape. The Site is the most evocative remnant of the immense alluvial and marshy zone that occupied a large part of the Rhone plain, and with a surface area of 6,300 hectares, it remains one of the largest natural wetland plain areas in Switzerland. The Site is remarkable for the diversity of its environments, its flora and fauna, as well as its landscape value. It is also of fundamental conservation importance as it shelters a large number of rare and endangered species. It is a prime site for migrating, nesting and wintering birds. Human activities include conservation, agriculture, fishing, limited forestry, gravel extraction, and outdoor recreation. There is a birdwatching tower. The Site is adjacent to the small lakeside city of Montreux, which hosted Ramsar COP4 in 1990. The Site was extended in 2011 from its original area of 330 hectares.

Administrative region: 
Valais, Vaud

  • National legal designation: 
    • District franc cantonal - La Praille (Object no. 157)
    • District franc fédéral (OROEM) - Bouveret / St. Gingolph (Object no. 1)
    • Inventaire cantonale des régions archéologiques (VD) - Instrument: art. 67 de la LPNMS (Loi de la protection de la nature des monuments et sites)
    • Inventaire des monuments naturels et des sites du canton du Vaud IMNS
    • Inventaire des sites de reproduction de batraciens d’importance nationale, annexe 4, 2001 / RS 451.34 - Les Grangettes (Object no. VD21)
    • Inventaire fédéral des bas-marais d'importance nationale , 1994 / RS 451.33 - La Muraz (Object no. 1378) / Les Saviez (Object no. 1379) / L’Aulagniez (no. 1380) / Clos Montet (no. 1381) / Gros Brasset (no. 1382)
    • Inventaire fédéral des paysages, sites et monuments naturels d'importance nationale (IFP), 1977 / RS 451.11 - Les Grangettes (Object no. 5)
    • Inventaire fédéral des sites marécageux d'une beauté particulière et d'importance nationale, 1996 / RS 451.35 - Les Grangettes (Object no. 289)
    • Inventaire fédéral des zones alluviales d'importance nationale, 1992 / RS 451.31 - Les Grangettes (Object no. 123)
    • Recensement architectural du canton de Vaud, section monumnets et sites
    • Réserve d’oiseaux d’eau et de migrateurs d’importance internationale et nationale (OROEM), 1991 / RS 922.32 - Les Grangettes (VD,VS) (Object no. 8)
    • Zone de protection cantonale (VD) - Instrument: Plan d’affectation cantonal 291
  • Last publication date: 


Ramsar Information Sheet (RIS)

Additional reports and documents