The Ourcq (, ''Urc'' in 855) is an

river A river is a natural flowing watercourse, usually freshwater, flowing towards an ocean, sea, lake or another river. In some cases, a river flows into the ground and becomes dry at the end of its course without reaching another body of wate ...

France France (), officially the French Republic ( ), is a country primarily located in Western Europe. It also comprises of Overseas France, overseas regions and territories in the Americas and the Atlantic Ocean, Atlantic, Pacific Ocean, Pac ...

, a right tributary of the

Marne Marne can refer to: Places France *Marne (river), a tributary of the Seine *Marne (department), a département in northeastern France named after the river * La Marne, a commune in western France *Marne, a legislative constituency (France) Nethe ...

. Its source is near the village Ronchères, and its course crosses the departments of

Aisne Aisne ( , ; ; pcd, Ainne) is a French department in the Hauts-de-France region of northern France. It is named after the river Aisne. In 2019, it had a population of 531,345.Oise Oise ( ; ; pcd, Oése) is a department in the north of France. It is named after the river Oise. Inhabitants of the department are called ''Oisiens'' () or ''Isariens'', after the Latin name for the river, Isara. It had a population of 829,419 ...

, and

Seine-et-Marne Seine-et-Marne () is a Departments of France, department in the Île-de-France Regions of France, region in Northern France. Named after the rivers Seine and Marne (river), Marne, it is the region's largest department with an area of 5,915 square ...

. It flows southwest through the towns of

Fère-en-Tardenois Fère-en-Tardenois (, literally ''Fère in Tardenois'') is a commune in the Aisne department in Hauts-de-France in northern France. It is named for the Tardenois region. Population Personalities It was the birthplace of Camille Claudel (18 ...

La Ferté-Milon La Ferté-Milon () is a commune in the Aisne department in Hauts-de-France, northern France. Geography La Ferté-Milon is situated on the river Ourcq, 27 km southwest of Soissons and 30 km northeast of Meaux. La Ferté-Milon station ...

, Mareuil-sur-Ourcq, and Crouy-sur-Ourcq, finally flowing into the Marne near

Lizy-sur-Ourcq Lizy-sur-Ourcq (, literally ''Lizy on Ourcq'') is a commune in the Seine-et-Marne department in the Île-de-France region in north-central France. Demographics Inhabitants are called ''Lizéens''. Localisation Lizy-sur-Ourcq is located at 16 ...

Napoleon I Napoleon Bonaparte ; it, Napoleone Bonaparte, ; co, Napulione Buonaparte. (born Napoleone Buonaparte; 15 August 1769 – 5 May 1821), later known by his regnal name Napoleon I, was a French military commander and political leader who ...

made use of the river as a water source, and it supplied the city of

Paris Paris () is the capital and most populous city of France, with an estimated population of 2,165,423 residents in 2019 in an area of more than 105 km² (41 sq mi), making it the 30th most densely populated city in the world in 2020. S ...

until

Baron Haussmann Baron is a rank of nobility or title of honour, often hereditary, in various European countries, either current or historical. The female equivalent is baroness. Typically, the title denotes an aristocrat who ranks higher than a lord or knigh ...

's rebuilding of Paris.

References

Rivers of France Rivers of Île-de-France Rivers of Hauts-de-France Rivers of Aisne Rivers of Oise Rivers of Seine-et-Marne {{France-river-stub