Nick Paling's (WRT Head of Evidence & Engagement) presentation on the work Westcountry Rivers Trust has been do with the University of Exeter to trial rapid, low-cost remote sensing technologies (with a specially developed smartphone app, a remote controlled drone and fine-grained Structure-from-Motion – SfM – photogrammetric modelling), and assessed the potential of this approach for targeting catchment management interventions designed to mitigate sources and pathways of diffuse agricultural pollution mobilisation at a farm/field scale. The study has also examined the benefits of using this approach compared to the use of freely available topogrpahic data obtained from Tellus SW LiDAR aerial survey (funded by NERC). Presentation given at the IFM- and SFCC-hosted 'Mapping for Environmental Management Workshop' in Edinburgh on March 2nd 2016.