Drone LiDAR reveals three unrecorded ancient Indigenous shelters in Australia

Why This Matters

• The shelters are tangible links to Australia's pre-colonial past; each new site deepens understanding of how Indigenous people lived across the continent.
• The non-invasive method avoids excavation, preserving sites for future study and reducing impact on culturally significant areas.
• If the technique proves effective, it could be scaled to survey other under-explored regions, potentially uncovering hundreds more sites.

Background

Indigenous Australians have occupied the continent for at least 65,000 years, leaving behind rock shelters, middens, and stone arrangements. Many sites remain undocumented, especially in remote or densely vegetated country. LiDAR (Light Detection and Ranging) has been used for decades in archaeology but is only recently being deployed on small drones, making surveys cheaper and more accessible.

Key Perspectives

Archaeologists: Non-invasive survey methods are increasingly valued for their ability to detect structures that are invisible from the ground or from satellite imagery. Drone LiDAR offers a middle ground between satellite data and on-foot inspection. Indigenous communities: Traditional owners have a stake in how heritage sites are discovered, recorded, and managed. Consultation and consent processes will be important as the technology becomes more widely used. Technology developers: The success of this survey may encourage investment in lightweight LiDAR sensors and autonomous drone navigation tailored for archaeological work.

What to Watch

• Whether Dr Bongers or other researchers publish detailed findings, including shelter dimensions, construction style, and estimated dates.
• If traditional owner groups are named as partners in future surveys.
• The potential for this method to be applied in other countries with similar challenges of dense vegetation and remote terrain.