Police are scouring bushland in the NSW Riverina in their search for missing 27-year-old woman Allecha Boyd, who disappeared more than a month ago.
Ms Boyd has not contacted her family, accessed her bank accounts or posted to social media since August 10, leaving police with "serious concerns for her welfare".
Wagga police alongside local SES volunteers descended on the Lester State Forest, 20 minutes south of Coolamon, on Wednesday morning.
"Police are concentrating their search at this forest as a genuine line of inquiry given the fact that the missing person was last seen in the Coolamon area," Detective Inspector Darren Cloake told AAP on Wednesday.
"We're not discounting at this early stage that Ms Boyd may have been brought out to the state forest sometime after she was dropped off."
Ms Boyd was last seen being driven to Coolamon from Wagga in a green and silver Subaru Outback station wagon, which has since being seized by police as part of their investigations.
The search of the forest, which encompasses around seven square kilometres, is expected to take police a full day.
"We're searching for anything that may lead to explain the disappearance of Allecha ... it's a lightly wooded area but it's a big area to search," Det Insp Cloake said.
Despite hopes Ms Boyd will be found safe and well, Det Insp Cloake previously told AAP her distraught family was preparing themselves for the worst.
"The non-contact and the ceasing of the telephone and finances, we are highly concerned about that, and whilst we are hopeful for a good result we're also planning for the worst," he said.
"(It's) a tell-tale sign something is amiss here."