Understanding and Implementing a Parsimonious Way to Add North Arrow and Scale Bar to ggmap

Creating Interactive Geospatial Visualizations with R and ggplot2: A Comprehensive Guide to Effective Mapping Techniques

Customizing ggmap: A Guide to Changing Color Scales and Removing Google Labels

Sorting Legend Order in ggmap: 3 Approaches to Customization

Changing Geom_point Colors Depending on Data in R: A Step-by-Step Guide