A petition calling for a $1 million reward to help find Monique Clubb has drawn more than 2,500 signatures as supporters urge Queensland authorities to renew attention on the unresolved case.

The Change.org petition asks the Queensland Minister for Police and Commissioner of the Queensland Police Service to offer the reward for information leading to the recovery of Ms Clubb's remains.

A proud Aboriginal woman, Ms Clubb disappeared in June 2013 after travelling from Hervey Bay to Brisbane.

She have never been found.

Petition organisers say a reward could help encourage people with information to come forward, including anonymously.

The petition frames the call as an issue of dignity for Ms Clubb and her family.

"This petition is not only about accountability... it is about compassion, dignity and justice," it said.

"Monique's family have endured years of uncertainty and grief."

Deputy State Coroner Jane Bentley found in 2022 that Ms Clubb was deceased and had probably died in Beenleigh or the Brisbane area on or soon after June 22, 2013.

The coronial findings listed her cause of death as undetermined.

Ms Bentley also found Ms Clubb was not in Hugh Muntz Park at Beenleigh and had left the park shortly after entering it.

The findings raised concerns about the police investigation, including missed opportunities to examine further CCTV footage, phone records and public transport information.

A police conclusion that Ms Clubb had died of an overdose in the park meant the investigation was effectively discontinued when more evidence may still have been available, the findings stated.

The findings questioned that conclusion.

"The conclusion reached by investigating police is inconsistent with the evidence," Ms Bentley said.

Ms Bentley recommended QPS consider further use of airborne phone location systems and changes to its Operational Procedures Manual to remove confusion about who leads missing persons investigations.

The petition says evidence presented through the coronial process and ongoing investigations suggests people may still hold information about what happened to Ms Clubb and where her remains may be found.

It calls on the Queensland Government to immediately offer the $1 million reward and renew public attention on the case.

Supporters say Ms Clubb's family should have the chance to bring her home and lay her to rest.

The petition closes with a call for action after years without answers.

"After years without answers, the time has come to do everything possible to bring Monique home," the petition said.

The petition has attracted more than 2500 signatures so far, with supporters able to add their names through the Change.org page.