The law custodian of Prices Point will not sign the gas hub access deal.
Goolarabooloo elder Joseph Roe voted against the development at last week's meeting.
He says he has widespread support for his fight to stop the project.
"At the end of the day, my job is to protect what I've been handed down from generation to generation, that's Bugarigaara, or Dreamtime," he said.
"I have to stand up as a law boss and protect it and keep it behind me.
"I'll make sure no-one comes down and destroys that."