It was a big deal in Australian history back in the 1980's (I remember all the drama); the Tasmanian State Government wanted to build a dam to produce Hydro Electric power but it would have flooded a lot of this area. This was well before any sort of solar or wind was an option. They started work but protesters were chaining themselves to trees and getting lots of media coverage. Lots of people weighed in and the dam would have also destroyed some natural animal habitats and Aboriginal painted caves. The State Government kept trying and got a referendum, where 55% wanted a dam but something like 45% did an informal vote and lots just wrote "no dam" on the ballet paper. Eventually the Federal Government had to pass laws and make it a World Heritage Area and the development was stopped.
And that's it folks! Next stop on my epic Tasmanian tour: Hobart, the capital of this island state.