The cuisine of Switzerland is multifaceted. While some dishes such as fondue, raclette or rösti are omnipresent through the country, each region developed its own gastronomy according to the differences of climate and languages.  Traditional Swiss cuisine uses ingredients similar to those in other European countries, as well as unique dairy products and cheeses such as Gruyère or Emmental, produced in the valleys of Gruyères and Emmental. The number of fine-dining establishments is high, particularly in western Switzerland.
What part of Switzerland has a particularly high number of fine-dining establishments? (If the question is unanswerable, say "unanswerable")
western Switzerland