Walkers are being warned about the risk of avalanches in rural areas of Northumberland.
Northumberland National Park Authority said there have been snow drifts of up to 3m (10ft) in places.
It said the Cheviot Hills were prone to avalanches because of their topography, grass and with temperatures rising over the next few days.
Walkers are being warned to steer clear of the upper valleys leading to the Cheviots.
An authority spokeswoman said lumps of snow the size of vehicles had been coming down.
She advised walkers to stick to the lower valleys until they could monitor the conditions.
She also urged people to dress suitably and take equipment with them.
Meanwhile, the authority praised contractors and volunteers who had helped to keep services and traffic running through the area.
It included a team working to open up a 10-mile stretch of road above Alwinton to Blindburn and Fulhope.