Major landowners, responsible for 700km2 of potential Eurasian lynx habitat in the Kielder Forest region, have given their permission for a planned Lynx UK Trust trial reintroduction of the predator.
According to Lynx UK Trust, 100% of the landowners approached have given their go-ahead, to return six of the medium-sized cats to Kielder for a five year trial.
If the trial was successful, it could lead to a wider reintroduction of the lynx in other parts of the UK such as the Scottish Highlands.
Advocates of the reintroduction of the animal say it would help to reduce the UK's over-populated deer numbers and boost tourism in Northumberland.
Although the lynx normally prey on deer, some sheep farmers are worried that their livestock will be affected.
The National Sheep Association say it disputes the latest information from the Lynx UK Trust.
The Government is still considering the Lynx UK Trust licence application.