Cimetière des Champeaux de Montmorency

Montmorency (French pronunciation: [mɔ̃mɔʁɑ̃si] (listen)) is a commune in the Val-d'Oise department, in the northern suburbs of Paris, France. It is located 15.3 km (9.5 mi) from the center of Paris. Montmorency was the fief of the Montmorency family, one of the oldest and most distinguished families of the French nobility. It is now a wealthy suburb of Paris.

The canton of Montmorency is an administrative division of the Val-d'Oise department, Île-de-France region, northern France. Its borders were modified at the French canton reorganisation which came into effect in March 2015. Its seat is in Montmorency.It consists of the following communes: Andilly Enghien-les-Bains Margency Montlignon Montmorency Soisy-sous-Montmorency

Communauté d'agglomération Plaine Vallée is the communauté d'agglomération, an intercommunal structure, covering northwestern suburbs of Paris. It is located in the Val-d'Oise department, in the Île-de-France region, northern France. It was created in January 2016. Its seat is in Montmorency. Its area is 74.1 km2. Its population was 182,585 in 2018.

The Fort de Montmorency was built following the Franco-Prussian War to defend Paris. Located to the north of Paris in Montmorency, the fort was part of an outer ring of fortifications built in response to improvements in the range and effectiveness of artillery since the construction of the Thiers fortifications of the 1840s. It was built between 1875 and 1879 in accordance with improved principles of fortification developed for the Séré de Rivières system. The fort defended its neighbors, the Fort de Domont and the Fort de Montlignon, as well as the town of Saint-Denis. The fort saw no action in the first or second world wars, but its prominent height made it ideal for use as a telecommunications relay station. In 1947 the French Air Force occupied the site, and by 1952 communication cables were installed to link the fort to the national air defense communications system. In 1956 the Fort de Montmorency became the national headquarters for Air Force communications. The fort was designated Base aerienne 285.Base aerienne 285 was disbanded in 1968 and the fort was first placed under the jurisdiction of ''Base aerienne 104 at Le Bourget, and later under the control of the French Air Force hardened command center at Base aerienne 921 at Taverny, at the west end of the Montmorency forest. From 1992 the fort has served as a training center for security forces associated with the Taverny center, the Centre d'Initiation aux Techniques Commandos.The fort remains occupied by the military and is not open to the public.

The Château de Montmorency was an 18th-century mansion in Montmorency, Val-d'Oise of which today only a few vestiges remain.

Deuil-la-Barre (French pronunciation: [dœj la baʁ] (listen)) is a commune in the northern suburbs of Paris, France. It is in the Department of Val-d'Oise and the arrondissement of Sarcelles. It is 13.7 km (8.5 mi) from the centre of Paris. Despite this proximity to the metropolis, Deuil has retained much of the charm of a country village, with orchards and wooded hillsides.

Groslay (French pronunciation: [ɡʁolɛ] (listen)) is a commune in the Val-d'Oise department in Île-de-France in northern France. It is located 15 km north of Paris, the capital.

Deuil – Montmagny station is a railway station in Deuil-la-Barre, France, that also serves Montmagny. It is situated on the Épinay-Villetaneuse–Le Tréport-Mers railway, between Gare d'Épinay-Villetaneuse and Gare de Persan-Beaumont. It is served by Transilien trains from Paris-Nord to Persan-Beaumont and to Luzarches. The daily number of passengers was between 2,500 and 7,500 in 2002. The station has 145 free parking spaces. (in French) The station was opened in 1877, when the Épinay-Villetaneuse – Persan-Beaumont section of the Épinay-Villetaneuse–Le Tréport-Mers railway was opened by the Compagnie des chemins de fer du Nord.

Soisy-sous-Montmorency (French pronunciation: [swazi su mɔ̃mɔʁɑ̃si] (listen), literally Soisy under Montmorency) is a commune in the Val-d'Oise département located 15.3 km (9.5 mi) north of Paris, France.

The canton of Deuil-la-Barre is an administrative division of the Val-d'Oise department, Île-de-France region, northern France. Its borders were modified at the French canton reorganisation which came into effect in March 2015. Its seat is in Deuil-la-Barre.It consists of the following communes: Deuil-la-Barre Groslay Montmagny Saint-Brice-sous-Forêt

The Fort de Domont was built following the Franco-Prussian War to defend Paris. Located to the north of Paris in Domont, the fort was part of an outer ring of fortifications built in response to improvements in the range and effectiveness of artillery since the construction of the Thiers fortifications of the 1840s. It was built between 1875 and 1879 in accordance with improved principles of fortification developed for the Séré de Rivières system. Work on the fort began in 1874 and were completed in 1878. The fort covered an area of 12 hectares (30 acres) and its garrison comprised 1175 men and officers.The fort's artillery fire supported its neighbors, the Fort de Montmorency and the Fort de Montlignon. The pentagonal fort was entered through the south side, facing Paris. It featured a double caponier on the point facing outward, and two flanking caponiers on the east and west sides. The fort's main armament was a 155mm Mougin turret, added in 1884. Other artillery on the firing terrace, or cavalier, was of 120mm and 95mm caliber. The fort's artillery dominated the plains to the north, as well as the railway line to Pontoise.On 3 and 4 September 1914, the fort fired on German scout parties in the vicinity of Luzarches, the only Parisian fortification to fire on Germans during World War I. The fort was occupied by German forces during World War II, who blew up the fort's ammunition stockpile before evacuating on 26 August 1944.The fort was used by the French Post (PTT) as an ionospheric research station during the 1950s, followed by the Ministry of Agriculture. The fort was briefly used by a private company for radiography work in the 1990s before it became a training center for the fire services in 1993. It is now known as the Fort Domont Training Center ("Centre de Formation et d'entrainement, Fort de Domont"). The center provides comprehensive training, including live fire exercises

Andilly (French pronunciation: [ɑ̃diji] (listen)) is a commune in the Val-d'Oise department in Île-de-France in northern France.