An interesting package in R for making very nice visualizations is leaflet.
The following R code produces a map of the CSU East Bay Hayward campus. All we need is the geolocation information.
For examples of leaflet for R
library(leaflet)
m <- leaflet() %>%
addTiles() %>% # Add default OpenStreetMap map tiles
addMarkers(lng=-122.05415, lat=37.65602, popup="The birthplace of R")
m # Print the map
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