Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Pyrénées - Mont Perdu' has mentioned 'Canyon' in the following places:
Occurrence Sentence Text Source
In the 70's work begins to take advantage of the flooding of Axc3xb1isclo Canyon and convert it into energy, but institutions and citizens demonstrated against this work, managing to stop it.
So, the park was expanded in 1982 significantly to 156 square kilometres and incorporates the whole of the Axc3xb1isclo Canyon.