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Wireless Sensor Networks (WSN) and Unmanned Aerial Vehicles (UAVs)have become two established technologies for applications such as monitoring, event detection, target tracking and remote sensing. WSN usually consists of hundreds and thousands of battery powered tiny devices that measure and collect data from its surrounding environment and forward it to a base station or sink. UAVs are a great platform for collecting remote data and can easily carry and deploy sensor nodes. The present research work focuses on the experimental validation of the so-called Efficient Geometry-based Localization (EGL) technique, which provides a flexible, scalable, and distributed way to localize static sensor nodes on an experimental field. The mobile sink node will be carried by an UAV system with autonomous flight embedded with a low cost Global Navigation Satellite System (GNSS) receiver. Experimental results …