Mortzwiller

Mortzwiller is a former commune in the Haut-Rhin department in north-eastern France. On 1 January 2016, it was merged into the new commune Le Haut-Soultzbach.
Mortzwiller is located approximately 20 km west of Mulhouse and 20 km northeast of Belfort in the Sundgau region on the eastern side of a wooded mountain range in the Vosges, which largely coincides with the political border between the Grand Est and Bourgogne-Franche-Comté regions and also with the traditional language border.
The street village lies in the Soultzbach valley.
It is surrounded to the north, west and south by the 'Forêt domaniale de Masevaux' state forest.
On the southern edge of the village is the 'Étang du Vieux Moulin'.