Police are performing letterbox drops in Lightning Ridge in north western NSW to encourage residents to come forward with any information they have into the death of Christine Neilan.
The 39-year-old was known to walk her dog 'Sooky' around the local area, but on January 8 she never returned from her walk.
Ms Neilan body was discovered in bushland near Lightning Ridge. A post-mortem revealed she had died of head injuries.
Now police are hoping their renewed efforts will uncover more information about her death.
Homicide Squad Commander Danny Doherty said even something that may not seem significant at first could make a difference in the investigation.
"There has been some information coming from residents, but we urge anyone with information to come forward," he said.
"They may not think it's relevant to investigators, but that might just be the clue that we need."
Ms Neilan's family echoed the calls for more information and her daughter said she wants justice for her mum.
"I just don't understand how no-one has seen anything and no-one knows anything," she said.
"It's a small town and she was found so close to her house, so close to a main road.
"We just want one answer — who did this to our mum?"