Twin regions

Voiron
Voiron is a commune (French municipality) in the ninth district of the Isère department in southeastern France. It is the capital of the canton of Voiron and has been part of the Grenoble-Alpes Métropole since 2010. Voiron is located 25 km (16 mi) northwest of Grenoble and 85 km (53 mi) southeast of Lyon. Its roughly 20,000 inhabitants are the Voironnais.
Voiron, along with Chambéry and Grenoble, is a gateway city of the Chartreuse Mountains in the Auvergne-Rhône-Alpes region.

Kreis Herford
Herford (German pronunciation: [ˈhɛʁfɔʁt]) is a Kreis (district) in the northeastern part of North Rhine-Westphalia, Germany. Neighboring districts are Minden-Lübbecke, Lippe, the urban district of Bielefeld, and the districts Gütersloh and Osnabrück. The district is located between the three mountain chains of the Wiehen Hills in the north and the Teutoburg Forest in the south. To the northeast it is bounded by the Weser river.