The Isere River is a major source of water and transportation in France. It arises in the Alps and flows towards the Rhone, through picturesque valleys and past historic villages. Its calm waters and scenic surroundings attract many tourists each year. However, this river has several synonyms that visitors might come across when researching their trip. Some refer to it as Arc River due to the Arc Valley it flows through. Others call it the Romanche River because of the Romanche Valley it passes through. Finally, some know it as the Isere-Savoie River, as it forms the border between Savoie and Isere departments. Whatever you choose to call it, the Isere River is undoubtedly a stunning natural wonder.