OPPOSITION to coal seam gas mining is gathering yet more pace as more communities declare themselves CSG-free.

The initiative continues to roll across the Tweed Valley, with the upper Tweed valley enetering the movement.

The communities of Mt Burrell, Kunghur and Doon Doon plan to celebrate their declaration as CSG-free this Sunday August 26 between 11am and 1pm at the Sphynx Rock Cafe at Mt Burrell.

Following a community meeting held at Nimbin as part of the CSG-free Communities initiative, members of the upper Tweed valley communities decided to get the initiative under way in their locality.

Paul Hunter, one of the team of locals spearheading the initiative said he is "ecstatic" over the response from the local community.

"I am just blown away," he said.

"People have been knocking on doors all over the upper reaches of the Tweed valley.

"They are so concerned that Arrow Energy might decide to start drilling in this area."

The official level of support in the community for this declaration will be announced as part of the celebration.

Organisers say preliminary figures show it will be well over 90% support for a CSG-free community.

"This reflects the experience in other communities across the Tweed Shire and the broader Northern Rivers region, Michael McNamara from Lock the Gate Tweed said

"This declaration of the upper Tweed valley as CSG-free takes us to nearly 50% of the Tweed Shire declared, by will of the community, as CSG-free.

"The ongoing roll-out of the CSG-free Communities initiative also puts pressure on local council candidates to 'declare their hand' about the extent to which they are prepared to stand with their community on this issue and what actions they will take if elected to council."