In summer 2011 a flood event triggered numerous mass movements, such as landslides and debris flows in this works study area, the Schöttlbach torrent. Especially the lower parts of the slopes along the Schöttlbach are heavily affected by erosion. The event caused the loss of large parts of stabilising vegetation, which is still evident up to the present day. In this work the affected erosion slopes were mapped and classified based on certain parameters. Subsequently, digital terrain models of representative erosion surfaces of each class were created using two methods. Terrestrial laser scanning (TLS), which is commonly used for this kind of application, was the reference method. An alternative variant, structure from motion (SfM), was used as a comparative method. The latter is able to generate a 3D model from photographs of a consumer-grade digital camera. The accuracy of the TLS- and SfM-models was compared to test the suitability of the alternative method for this purpose. Additionally, erosion rates between two dates were determined. Differences between TLS and SfM were mostly caused by vegetation, which had to be filtered from the models. This could not be done accurately, neither in TLS- nor in SfM-models. In a completely unvegetated area 93% of the differences were within 0.02 m and 68% within 0.01 m. All in all, the SfM method can be considered as appropriate for the tested field of application. In order to make statements about the annual erosion rates in the study area, measurements over at least one year would be necessary. Since this will happen as a part of the project, a conversion key for all mapped erosion areas was created. Based on the values determined during the measurement period of this work, this would result in a theoretical erosion rate of 2224 m per year.