Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Tongariro National Park' has mentioned 'Tunnel' in the following places:
Occurrence Sentence Text Source
The Tokaanu power station is connected to Lake Rotoaira via a six kilometre tunnel through Mount Tihia.
It also draws water from the Tongariro River via the Poutu tunnel and canal.
On the eastern side of Mount Ruapehu, water is diverted from the Kaimanawa Ranges and headwaters of the Wahianoa River through a 20xc2xa0km tunnel into the Rangipo dam.