More than 350 Mountains residents gathered at the Katoomba Community Garden on Saturday to protest against the Adani coal mine.
The group formed a giant human sign to register their protest.
Susan Templeman, MP for Macquarie, was on hand, after being invited along by members of Stop Adani Blue Mountains.
"All the evidence shows the economics of the project don't stack up, and that's before you get to the environmental considerations," Ms Templeman said.
"And Federal Labor is absolutely clear that there's no way $1 billion of taxpayer money should be given to an Indian coal billionaire to build a coal plant."
Leura local Laura McLauchlan said: "It's not just about stopping the $1 billion loan of taxpayers’ money to Adani, it's also about ending Australia's love affair with dirty coal."
"Blue Mountains residents, like all Australians, care about our kids’ future, the Great Barrier Reef and creating jobs in clean energy industry."
Paddy Connor from Katoomba said: “We don’t want to see $1 billion of public money spent on supporting Adani's dirty mine which will fuel global warming impacts and destroy the Great Barrier Reef. We want investment in clean energy and a brighter future.”
