Opponents of a 48-turbine wind farm in the Borders are planning a protest march through the Lammermuir Hills.
The Say No To Fallago (SNTF) group said the area was "saturated" with turbines.
Scottish ministers are currently considering the fate of the North British Windpower Ltd development after a public inquiry.
That hearing started in February 2008 but took a two-year break before the Ministry of Defence withdrew its objections to the turbines.
The SNTF has launched a Facebook group and started an online petition to raise awareness of its concerns.
The protest march is planned for 12 June, on the eve of the Scottish government decision on the scheme.
SNTF Spokesman Mark Rowley said: "Let's be clear: we are not opposing renewable energy.
"There are already hundreds of turbines in the Lammermuirs.
"But further wind farm development in the area would be highly damaging."