 This study examined the accuracy of unmanned aerial vehicle, UAV, derived digital surface models, DSMs. It found that the accuracy increased as more ground control points, GCPs, were added, reaching a maximum accuracy of 0.25 meters vertically and 0.09 meters horizontally. Additionally, it was determined that the accuracy of the DSMs decreased as the distance to the nearest GCP increased, with a decrease of 0.09 meters per 100 meters. Furthermore, the study showed that the accuracy of the DSMs did not very greatly depending on whether the surface was covered by snow or ice. This article was offered by Saskia Jindrox, Grady Bosch, and Daniel Farinati.