The drone remote sensing operations were initially commissioned by Monumenten en Archeologie of the Gemeente Amsterdam, by archaeologist Dr. Ranjith Jayasena. The site under investigation is the Medieval castle ‘t Huijs ten Bosch, built after 1220 and destroyed in 1672, still visible as earthworks and cropmarks as a rectangular structure. The project entails an investigation into both the application and comparative value of innovative sensor techniques for prospection purposes as well as nature, extent, and state of preservation of the site itself (KNA Protocol 4003 Inventariserend Veldonderzoek 4.1: verkennend, karterend, waarderend veldonderzoek).