#structural hydrology
- Alzette — A medium-sized river in Western Europe, approximately 73 kilometers long, which rises in France and flows primarily through the Grand Duchy of Luxembourg, crossing its capital city and emptying into the Sauer River. This watercourse represents a major hydrographic and landscape structural axis for the region, renowned for the deep valley it carves into Luxembourg sandstone and for the historical fortifications built along its banks in Luxembourg City.