Abstract: A system and method for detecting unexploded ordnance (UXO) is disclosed. The system combines a customized Unmanned Aerial Vehicle (UAV) with a ground control station, and flies above terrain with centimeter precision using onboard LIDAR, SONAR, and RADAR sensors at altitudes as low as 20 cm. The system also provides several methods for mission planning including numerous Graphical User Interfaces (GUIs) for tablets and smartphones. The system provides obstacle avoidance and non-geometric area mapping. The data is fully compatible with numerous geophysical software formats and enables the UAV capable of precisely following real world terrain at distances as close as 20 cm, and is able to avoid obstacles in its flight path.