Complex sentence: The "Ruisseau de Combier" forms much of the western border before turning east and passing through the village then flowing east collecting many tributaries until it reaches the Rhone north of Baix.
Split into simpler sentences: The "Ruisseau de Combier" forms much of the western border before turning east and passing through the village. It then flows east, collecting many tributaries until it reaches the Rhone north of Baix.