Monthermé – Hautes-Rivières – Sorendal – Membre railway

The Semois (French pronunciation: [səmwa]; Simwès in Walloon, often under elided form Smwès; Semoy, Sesbach in German, Setzbaach in Luxembourgish of Arlon; and known as the Semoy in France) is a river flowing from the Ardennes uplands of Belgium and France towards the Meuse, of which it is a right tributary. The source of the Semois is in Arlon, Wallonia, in the Belgian province of Luxembourg, close to the border with the Grand Duchy of Luxembourg. Flowing in a roughly westerly direction, it enters France after passing through the Belgian village of Bohan-sur-Semois and forms about 2 kilometres (1.2 mi) of the Belgian–French border. It joins the Meuse 24 kilometres (15 mi) further downstream in Monthermé. The total length of the river is 210 kilometres (130 mi). Other places on the banks of the Semois are Chiny, Florenville, Herbeumont, Bouillon (including the localities of Dohan and Poupehan), and Vresse-sur-Semois (all in Belgium). The earliest documentation of the name, as SESMARA, is dated from the 2nd century AD. That was before that region was influenced by significant Germanic immigration. Medieval forms include Sesomirs (664), Sesmarus (950), Sesmoys (1104), and Semoir (1244). The river has given its name to a variety of tobacco grown in the area.

The canton of Bogny-sur-Meuse is an administrative division of the Ardennes department, northern France. It was created at the French canton reorganisation which came into effect in March 2015. Its seat is in Bogny-sur-Meuse. It consists of the following communes:

Bogny-sur-Meuse (French pronunciation: [bɔɲi syʁ møz], literally Bogny on Meuse) is a commune in the Ardennes department in the Grand Est region of northern France. Bogny-sur-Meuse is known for multiple sites linked to the medieval legend of The Four Sons of Aymon, such as the Hermitage, the statue of Bayard the horse, and the four peaks symbolizing the four brothers. Situated in the Ardennes mountains, the commune extends along the banks of the Meuse.

The Arboretum de la Pipe Qui Fume (4 hectares) is an arboretum located in the Forêt Domaniale des Hazelles at Bogny-sur-Meuse, Ardennes, Grand-Est, France. It is open daily without charge. The arboretum site was founded in 1996 by the Société d'Histoire Naturelle des Ardennes, and is currently managed by the Office National des Forêts, which offers guided tours. It contains trees, including ash and maple, shrubs, perennial plants, ferns, and annual flowers, growing about a deep ravine with slopes to 35%.

Joigny-sur-Meuse (French pronunciation: [ʒwaɲi syʁ møz], literally Joigny on Meuse) is a commune in the Ardennes department in northern France.

Deville (French pronunciation: [dəvil]) is a commune in the Ardennes department and Grand Est region of north-eastern France.

Nouzonville (French pronunciation: [nuzɔ̃vil]) is a commune in the Ardennes department in northern France.

Neufmanil (French pronunciation: [nœfmanil]) is a commune in the Ardennes department in the Grand Est region in Northern France. In 2019, it had a population of 1,006.

Neufmanil Castle (French: Château de Neufmanil) was a fortified house in the commune of Neufmanil in the Ardennes département of France.

The Marne de Flize is a geologic formation in France. It preserves fossils dating back to the Toarcian stage of the Jurassic period.

Sécheval is a commune in the Ardennes department in northern France.

The canton of Charleville-Mézières-2 is an administrative division of the Ardennes department, northern France. It was created at the French canton reorganisation which came into effect in March 2015. Its seat is in Charleville-Mézières. It consists of the following communes: