Fluvio geomorphologic processes such as bank erosion and deposition affect and change the shape and condition of river and stream channels. Erosion and deposition rates are dependent on many natural (e.g. climate, geology, vegetation, topography) and anthropogenic (e.g. dams, bridges, gabions, straightening, wildfires etc.) factors. Alterations to these factors disrupt the river/stream dynamic equilibrium and they respond by altering their shape, formation or even location. These changes might be slow or rapid but can cause serious problems to infrastructures and loss of human lives. For the more effective and sustainable management of rivers or streamσ and in general watersheds, new innovative methods are needed to monitor and understand these fluviogeomorphologic processes. Remote sensing tools can be utilized to monitor, predict and measure such changes in rivers and streams. Free satellite images and ortho-maps generated by airplanes have been used worldwide to map geomorphologic changes through time. Ortho-images captured by drone flights are more effective because they provide more details because of the higher spatial resolution they provide compared to satellite or airplane images. The use of drone images can be low cost, thus provide an effective way to map riverbank changes in targeted reaches that face erosional or depositional problems. This study used remote sensing tools to identify river banks changes by combining free satellite, aerial and low flight drone images. The study areas were reaches along Aggitis River in northern Greece. Firstly, free satellite and Google Earth images were utilized to map the entire watershed and find at a large scale the potential changes at riverbanks. Secondly, drone flights were executed to acquire high resolution images at the specific locations. Through these images, it was determined more accurately if accelerated bank erosion or deposition were occurring. Overall, these remote sensing tools proved to be a quick and low-cost methodology that allows identifying and measuring stream bank changes over many years but also over short periods of time (e.g. after a flood event). In addition, the methodology enables us to locate the areas with the greatest potential of erosion and deposition where naturebased solution should be implemented to stabilize stream banks, reduce erosion or deposition rates and mitigate nonpoint source pollutants.