Wungong Tunnel
Encyclopedia
The Wungong Tunnel links the Wungong Dam to Perth's
Perth, Western Australia
Perth is the capital and largest city of the Australian state of Western Australia and the fourth most populous city in Australia. The Perth metropolitan area has an estimated population of almost 1,700,000....

 Integrated Water Supply System.

It originates just west of Wungong Dam and runs through the granite Darling Scarp
Darling Scarp
The Darling Scarp, also referred to as the Darling Range or Darling Ranges, is a low escarpment running north-south to the east of the Swan Coastal Plain and Perth, Western Australia...

to the western portal in Rails Crescent.
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