Police have been searching moorland at Blackstone Edge, near Cragg Vale, for missing grandmother Pamela Jackson.
A team of around 10 officers were searching the area today (Saturday) and will be back out tomorrow (Sunday).
Sergeant Paul Dent, from Durham Constabulary, said officers would be searching the area for “some considerable time”.
Ms Jackson, 55, vanished from her home in Chester-le-Street, County Durham, six weeks ago. Her partner, Adrian Muir, 50, from Halifax, has appeared in court charged with her murder.
Now the family has made an emotional appeal for help to find her and bring her ‘home’.
Her sister Deborah Leighton said: “On Thursday we met the search team down there. Because of the weather we hadn’t been able to go there before, with the four foot snow drifts. We took a big bunch of flowers and we put them on the fell tops, where they think she might be.”
Fighting back tears she said: “She is an important part of our family as she was the oldest sister. As the youngest sister, I always looked up to her. She looked after us as my mam was always working. I just miss her.”
She appealed to anyone who may have seen Pamela between March 2 when she disappeared and March 8, to come forward, and contact police on 101 or Crimestoppers on 0800 555111.