This paper outlines the background and progress to date of a project to improve the coordination of care for Aboriginal people with mental health and/or alcohol and other drug problems living in the Eyre Peninsula region of South Australia. The project responds to recommendations from previous research by this team in this area, and has been running since 2004. Working with a wide range of health and human service providers, we explored issues that improve or hinder coordination of care and identified useful strategies. Some of these have already been implemented through the project: e.g. interagency cross-disciplinary training in response to shared needs, and lobbying for after-hours telephone help. Other strategies are still in progress: e.g. implementing a uniform triage and referral system and improving information sharing within Port Lincoln Aboriginal Health Service. The paper reflects on our experience of conducting Aboriginal health service research using a participatory action oriented approach, and discusses the challenges in providing effective and well coordinated rural and remote mental health/alcohol and other drug care in the context of complex health and social needs of Aboriginal people.