The town gave its name to the Pays de Gex, at various times under the jurisdiction of France, Switzerland and the Duchy of Savoy.
With the 1815 Protocol of the Conference of Paris, and the Treaty of Paris of the same date, Gex was placed in the Customs region of Switzerland and neutralised. The resolutions regarding the Pays de Gex were annulled by Art 435 of the Treaty of Versailles. In November 1923 France moved its customs office to Gex, and the matter was brought before the Permanent Court of International Justice , which decided in favour of Switzerland; this case is also notable for being an early example of the doctrine of fundamentally changed circumstances being invoked before an international court. A compromise was reached in 1932.
Source: Wikipedia.org
Copyright: Creative Commons 3.0
Address: Gex, Rhône-Alpes, France
Statistics
Select one of the most popular activities below or refine your search.
Discover the most beautiful and popular trails in the area, carefully bundled into appropriate selections.
Source: Chabe01
Copyright: Creative Commons CC BY-SA 4.0
Select one of the most popular categories below or be inspired by our selections.
Discover the most beautiful and popular attractions in the area, carefully bundled in appropriate selections.
Source: Chabe01
Copyright: Creative Commons CC BY-SA 4.0
With RouteYou, it's easy to create your own customised maps. Simply plot your route, add waypoints or nodes, add places of interest and places to eat and drink, and then easily share it with your family and friends.
Route planner

<iframe src="https://plugin.routeyou.com/poiviewer/free/?language=en&params.poi.id=1303083" width="100%" height="600" frameborder="0" allowfullscreen></iframe>
© 2006-2026 RouteYou - www.routeyou.com