Mapping cultural ecosystem services 2.0 – Potential and shortcomings from unlabeled crowd sourced images

•We introduce an approach to a content analysis of geotagged photos for CES uses.•By using automated tags and a network analysis, themes of the photos were grouped.•This method allowed to distinguish CES- and non-CES-related photos.•This approach can provide spatial information about socio-cultural uses.•Our approach is applicable for crowd-sourced photos available in other regions.