Roxlyn Bowie: Tip-offs Give Police “Hope” In 36-Year-Old Murder

The murder of young mother Roxlyn Bowie has disturbed the small town of Walgett for nearly four decades, but new leads have lead police back there and they're "hopeful" they'll find her.

They've started digging and searching at two sites, one just a few metres from her family home with the hope they'll finally uncover what happened 36 years ago.

"Ultimately what we'd like to find is evidence that will lead us to the location of Roxlyn's body," Detective Superintendent Daniel Doherty told reporters at a press conference which marked the start of the dig.

Roxlyn was 31 when she vanished from her Euroka Street home, which still had the lights, heater and television on.

She left behind her two children, aged six and two, and her husband John.

Roxlyn and her former husband John. Photo: Supplied.

Three weeks ago, investigators announced a $1 million reward for information that would help them find the mother-of-two's body or lead to a conviction.

Her daughter, Brenda, who now has two children of her own said it's been hard to live "not knowing what happened".

"From what I remember of my mum, it just seems impossible that she would have left my brother and I," she said, through tears.

Since then community tip-offs have built on the 30-year investigation prompting a forensic dig at two sites in her home town.

Officers have drained a dam east of the township, just over a kilometre from her home, and have been sifting through the silt that’s built up over the years.

They're also using ground penetrating radars to uncover any buried evidence on an old industrial site that was built at the time of her disappearance.

"The concrete slabs happened to be, from my understanding, being laid at that time," Supt. Doherty added.

They're expected to spend the next three weeks searching those two sites, to reduce the "burden of grief" on the Bowie family.

A coronial inquest in September 2014 concluded Bowie had died but the cause of death was undetermined and her body was never found.

If you have any information that can assist, please contact Crime Stoppers on 1800 333 000.