Unlike traditional photogrammetry, the technique of photogrammetry through unmanned aerial systems (UAS) allows the fast generation of information and its processing. Due to the fact that in Mexico a significant part of the surface presents irregular relief, the UAS technology becomes important for the fast and efficient quantification of degraded areas. In this study the orthomosaic and Digital Surface Model (DSM) were generated with the objective of zoning the types of human-induced soil degradation modified for the nano-basin 9 La Mesa, Acaxochitlán, which belongs to the sub-basin of the San Marcos River (RH27Cb) through UAS photogrammetry. It was found that the largest surface area with degradation is located in agricultural and grassland land use. It was also found that it is possible to define areas with degradation in greater detail, as well as to identify processes of land use change through photointerpretation of geo-referenced orthomosaics.
