What is the second-longest river in France?

The Seine River is the second-longest river in France, measuring approximately 777 kilometers (484 miles) long. It flows through the heart of Paris, which contributes significantly to its prominence and historical importance in French culture, geography, and economy. The Seine has been a vital waterway for trade and transportation throughout history and continues to be a popular site for tourism, showcasing landmarks such as the Eiffel Tower and Notre-Dame Cathedral along its banks.

In contrast, the Loire River, while the longest river in France at about 1,006 kilometers (625 miles), is not the second-longest. The Rhône River, which is also a major river in France, has a length of roughly 812 kilometers (505 miles) but is slightly longer than the Seine. The Tagus River, located primarily in Spain and Portugal, does not factor into this question since it is not situated within France.