Intensive searches in the Crookwell area over the past week have failed to find any sign of missing local woman, Jillian Fahey.
Searches have involved police, SES and volunteers.
The family of Ms Fahey is thanking volunteers who have covered more than eighty square kilometres of country and treked three to four hundred kilometres of road in four days of searching.
Police divers worked yesterday covering dams in the area and they complete their work today.
Jillian Fahey aged 50 was last seen at her home in Crookwell on Sunday.
She is described as Caucasian in appearance, about 160 centimetres tall, thinly built, of fair complexion, blond hair and blue eyes.
Anyone knowing of her whereabouts should contact police immediately.