Flyability’s Elios 3 has successfully completed a 3D mapping operation of a radioactive waste storage vault following more than a year of preparation and research. The information obtained in the mapping project will prove crucial to planning the vault’s removal. This is thought to be the first time a drone has been deployed to enter a high-level radioactive waste storage vault. If the drone was lost during the mission, it would not be possible to retrieve it. However, the Elios 3 succeeded, and DOE contractor Idaho Environmental Coalition (IEC) was able to gather all the necessary LiDAR data to create a 3D map of the vault in just one 7-minute flight. An expert from 3D mapping software company GeoSLAM was in attendance to process the LiDAR data on GeoSLAM’s software, guaranteeing the model would meet the IEC’s needs.