The past few years have seen the rapid development and availability of unmanned aerial vehicles (UAV). Popularly called “drones,” they are remotely operated vehicles that can be fixedwing aircraft or helicopters. UAVs are being developed for use in everything from product delivery to farming. Especially popular are micro UAV helicopters, which are usually in the form of small aerial platforms that have four or more propellers. This configuration provides great maneuverability, stability, and control. Compared to commercial satellite photography or manned aircraft, drones capture much more detailed geophysical data and can also fly beneath clouds, so can be used in overcast weather. Ground surveys conducted on land tend to be limited by geographical obstacles and other terrestrial factors. Instead drones provide a stable, 360° aerial view, so the mapping of geological structures over large areas can be achieved quickly and precisely. Their ability to fly both low and slowly along a predetermined flight path, allows for high-resolution overlapping stereophotogrammetric photos to be taken, which can then be used to generate aerial maps and 3D models of the landscape using geological software. Furthermore, this data can be combined with other type of surveys for a complete analysis of the site. Shown is a geologist setting the drone and ready to take off.