Mapping Wirlomin: Dwoort Baal Kaat is a new depiction of a very old story, the result of a close collaboration between Samya Jabbour, Professor Kim Scott, and the Wirlomin Noongar community on WA’s south coast. For the first time, the ancient Noongar story of Dwoort Baal Kaat has been put on the map in digital form. The Wirlomin Noongar community, and Wirlomin Noongar Language and Stories Inc (WNL&S), have for several years been tending to the delicate work of reclaiming stories, songs, dialect, and culture from the ashes of a brutal colonial history. Guided by Wirlomin community elders, and drawing on oral histories, archival materials, on-country trips and community consultation, WNL&S has been ensuring Wirlomin cultural stories are passed on to future generations. Mapping Wirlomin: Dwoort Baal Kaat navigates the sensitive handling of Wirlomin Noongar community cultural knowledge and digital data, to ensure that data sovereignty was kept safely in the hands of the Wirlomin community, and that digital privacy was always maintained. This required some novel use of digital mapping software and online data platforms to safely use these technologies in line with Indigenous data sovereignty protocols. This paper explores the ethical responsibilities of decolonial research in geography and some of the institutional barriers to safe practice with Indigenous data. It also touches on the value of interdisciplinary collaborations, the imperative of cross-cultural literacy, and some of the implications of this research for renewed relationships with Country.