Landscape forms through drone documentation: rediscovering continuity of Torto river in Braga District, Portugal

This article proposes a proof of concept related to methodology that uses an unmanned aircraft vehicles (UAV) as investigation tool in landscape planning, which results can be used also archaeology, cultural landscape, and heritage studies, create multidimensional approach for understanding relations between valuable assets preserve fundamental qualities the landscape. It is evaluated if UAV appropriate research (through accessibility equipment, software, workflows its application) capable providing views could anticipate planning decisions. As example, Torto River, located Braga, Portugal, starting from intersection with Roman Via XIX, was studied. Research aims show drone surveying lead raised awareness on disappearing continuity elements, value their spatial relationships, are not taken into consideration development places like researched area neighbouring nuclei S. Frutuoso Dume, nearby popular pilgrimage trail Camino de Santiago. The possibility identifying reflecting elements ensure noted through videography recorded based visual line sight (VLOS) mode. explores variety conditions should considered when preparing recording chosen information (as local regulations, weather conditions, expected outputs), proposing flight execution most optimal setups, including –15° angle capturing relationship, – 90° photogrammetry videogrammetry (here captured maximal altitudes allowed area, overstepping 75 120 m limit).