Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Pyrénées - Mont Perdu' has mentioned 'River' in the following places:
Occurrence Sentence Text Source
They were located on the slopes of the massif and neighbouring valleys, formed by the hydrographical river network that irrigated the fields along the valleys in the north, and the trails and roads, bridges, houses and hospices (such as the espitau/hospices of Gavarnie, Boucharo, Aragnouet, Parzan, Hxc3xa9as and Pinet).