Greens MLC Cate Faehrmann visited Minnamurra on Saturday to see and hear more about the site of a proposed sand mine.
Ms Faehrmann met with Kiama Greens, Friends of Minnamurra River and Gerroa Environmental Protection Society to consider the potential impacts on the environment and river systems.
She described it as "an absolutely stupid place for a sand mine" and told those present The Greens will be doing everything it can locally and in State Parliament to support their campaign.
Looking at what she described as a "beautiful endangered forest" proposed for a sand mine she said the community won't stand for it.
"They want their river protected, they want their forest protected and they want their threatened species protected," she said
Ms Faehrmann is confident that a proper process would determine that putting a sand mine in such a beautiful part of the world would be unsuitable.
"The community doesn't want it and we will be fighting it," she said.
"It is absolutely disgraceful in 2019 that a company could think of clearing an endangered forest full of beautiful endangered species. This is for communities to protect. We will fight this one right to the end. Enough is enough. Rather than mining sand beautiful places like this we should be looking at alternatives in the construction industry".
Richard Maitland, of Friends of Minnamurra River, he has been a resident overlooking the river for more than 40 years and said it has been under threat on several occasions. "In the 1970's they were hoping to put a sand mine in roughly in the vacinity of No 5 Pit and that particular proposal was rejected. And here were are in the 21st century with the same proposal coming up again".
Mr Maitland said the Minnamurra River site was in a different catchment to existing sand mining operations which is why the group thinks the proposal should be rejected in its present form. They think is should be assessed under different criteria.
The group is concerned about the proposed sand mine's impact on the river and half a dozen native species that have been identified in the area.
"The ecological significance of this particular site here is very very important," Mr Maitland said.