Ourcq
 | You can help expand this article with text translated from the corresponding article in French. (March 2025) Click [show] for important translation instructions.
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| Ourcq | |
|---|---|
 Ourcq river in Lizy-sur-Ourcq | |
 | |
| Location | |
| Country | France |
| Physical characteristics | |
| Source | |
| • location | Hauts-de-France |
| Mouth | |
• location | Marne |
• coordinates | 49°0′49″N 3°0′49″E / 49.01361°N 3.01361°E |
| Length | 86.5 km (53.7 mi) |
| Basin features | |
| Progression | Seine→ English Channel |
The Ourcq (French: [uʁk] ⓘ, Urc in 855) is an 86.5-kilometre-long (53.7 mi) river in France, a right tributary of the Marne.[1] Its source is near the village Ronchères, and its course crosses the departments of Aisne, Oise, and Seine-et-Marne. It flows southwest through the towns of Fère-en-Tardenois, La Ferté-Milon, Mareuil-sur-Ourcq, and Crouy-sur-Ourcq, finally flowing into the Marne near Lizy-sur-Ourcq. Napoleon I made use of the river as a water source, and it supplied the city of Paris until Baron Haussmann's rebuilding of Paris.
