Diseased trees on an area equivalent to 30 football pitches are to be felled at a popular beauty spot in Denbighshire.
Natural Resources Wales (NRW) has pledged to keep disruption to a minimum given the popularity of Moel Famau for local people and visitors.
However several road and trails will be closed for more than two months in the New Year.
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NRW said felling is needed to curb the advance of Phytophthora ramorum, a deadly disease affecting larch trees which has laid waste to woodlands across Wales since it was first identified in 2010.
The work, covering 26 hectares, is scheduled to start in January 2022 and be completed by the end of March.
Earlier this year NRW felled 10 hectares of larch at Moel Famau but the environmental body has now decided more is needed.
Aidan Cooke, NRW’s senior forest operations in North East Wales, said the organisation had little choice.
“We are legally required to comply with a statutory plants…