A mining threat to a Brecon Beacons beauty spot has resulted in 1,000 locals signing a petition against the proposal.
Villagers fear that mining the land will blight local homes and businesses
Residents of Talybont-on-Usk, five miles south of Brecon, see their fight to stop mining of sand and gravel at three sites around their village as a David and Goliath battle with the Welsh Assembly Government (WAG)
They claim WAG has stirred up a hornet's nest by threatening to reserve the sites for sand and gravel deposits needed by the building industry.
But WAG claims it is under pressure to do so because of limited reserves from current sources in the Bristol Channel.
The local community council has been backed by the Brecon Beacons National Park and the Countryside Council for Wales in its opposition to the idea.
A petition has been signed by many of the village's 750 residents as well as visitors to the area.
Villagers fear that preserving land for mining will blight local homes and businesses as well as hit the local tourist industry.
"WAG is acting prematurely because there is no objective evidence which supports the case to switch to land-based mining, said Peter Seaman, the council's clerk.
"WAG claims it is committed to sustainable principles but there is no sustainability in extraction from land based reserves while marine reserves are sustainable," he added.
"This is a David and Goliath battle and we are worried that any mining would pollute the river Usk which is a river of European importance."
There are three sites near the village that could be mined
Members of the community council will present the petition to WAG environment minister, Carwyn Jones on Wednesday.
"The Minister has the power to lift his threat against a beautiful National Park community," said Edward Morgan, the council's chairman.
"He must recognise there is no real need or justification to take land-based minerals from this area."
A WAG spokesman said the pattern of supply of sand and gravel in south east Wales is unique in the UK because of its dependence on marine dredged resources in the Bristol Channel and Severn Estuary.
She added: "The assembly does not wish to encourage land-based extraction but does consider that finite resources of limited availability should be safeguarded for use by future generations if then required."