The Canal de la Marne au Rhin is a significant waterway in northeastern France. It connects the Marne River to the Rhine River, facilitating navigation and transport between these two major rivers. The canal spans approximately 313 kilometers and features several locks to manage changes in elevation. Constructed in the 19th century, the canal plays a vital role in regional trade and tourism. It passes through picturesque landscapes, including the Alsace region, and is popular for recreational boating. The canal also supports local ecosystems and provides opportunities for fishing and wildlife observation.