Energy firm Nuon wanted to build seven turbines at Harrington
Plans for a wind farm on a former nuclear missile site in Northamptonshire have been turned down.
Energy firm Nuon wanted to build seven 126m (413ft) towers at Harrington.
Daventry district councillors said they rejected the proposal because English Heritage had pointed to the site's significance during the Cold War.
Campaigners against the plan from three small villages nearby said it was a "victory for David against Goliath". Nuon said it was considering an appeal.
On Wednesday night, the planning committee voted 10-2 against the application even though council officers had recommended approval.
Ann Smeaton, from the Say No to Harrington campaign, said: "We are absolutely delighted with the result.
"We have nothing against wind energy, we just felt it was the wrong development in the wrong place."
Thor missile site
Chairman of Daventry's planning committee, Frank Wiig, said: "Councillors felt it went against the East Midlands regional plan. But mainly it was because of English Heritage's objection.
"It was a Thor Missile site during the Cold War. There were 20 of them in all and Harrington remains one of the best examples."
Nuon's project manager, Graham Davey, said: "The majority of councillors voted against what their officers were recommending.
"We will of course be considering an appeal to the planning inspector and in doing so we will be examining the reasons for that refusal."
The seven turbines would have been taller than the Big Ben clock tower in London and would have generated enough electricity for 7,700 homes.
The Harrington proposal was one of three put forward by Nuon Renewables for the area.
In December 2009, the government approved the energy firm's plans for an 11-turbine wind farm at Swinford, in Leicestershire.
Nuon also has another proposal for three wind turbines at Airfield Farm in north west Bedfordshire, next to the Santa Pod Raceway.