Mapping in R workshop demonstrating how to use R/ RStudio to work with spatial data for mapping and data visualization. This website created originally for a workshop at the 2018 River Rally, titled "Using R for Geospatial Mapping and Dynamic Visualization". It has since been updated and includes additional content, while still retaining the core of the workshop. No prior experience is necessary, participants use the free & open source R & RStudio programs to: become more proficient at data management/organization download spatial and tabular data load, aggregate and summarize data perform spatial operations commonly used in GIS programs (e.g., intersect, clip, buffer), plot and map data in both static (printable) and dynamic forms you can share or post online.