Plans to build a five-turbine wind farm near a hill overlooking Teesside and North Yorkshire have been met with opposition.
Banks Renewables wants to build the farm – expected to generate power for almost 10,000 homes – at Roseberry Topping hill, near Guisborough.
The National Trust has sent a letter of objection to Redcar and Cleveland Council, saying it will be “intrusive”.
But the firm said the scheme would benefit the community and create jobs.
Some local residents believe the farm would destroy landscape views.
The National Trust is worried the farm will spoil views in the area for walkers and be “dominant and intrusive”.
The North York Moors National Park Authority (NYMNPA) is also against the development, claiming it will have “significant and harmful impacts in terms of views of important iconic landscape features”.
The council is expected to make a decision on whether or not to give the scheme planning permission in April.
Phil Dyke, development director at Banks Renewables, said: “We think it is a positive scheme and it is in the right location. Generating energy is an important of combating climate change.
“We will also be looking at community benefits and talking to local people about helping with energy efficiency.”
Fight In Guisborough to Halt Wind Turbines group spokesman Peter Berry said: “This development will loom over Guisborough for 25 years – and in my opinion make house prices fall and destroy the tourism revenue.”