Description Usage Format Examples
A SpatialPolygonsDataFrame containing polygons 
for the 23 counties in the state of Wyoming.
1  | data("WY")
 | 
A SpatialPolygonsDataFrame containing 23 polygons whose union outline 
boundaries of the state of Wyoming. Source of the Shapefile containing all US 
counties in 2015 was 
https://www.census.gov/geo/maps-data/data/cbf/cbf_counties.html.
Attributes of the polygons are:
STATEFP = State identifier (56 = Wyoming)
COUNTYFP = Unique identifier for county
NAME = Name of the county
The proj4string is "+init=epsg:26912} \code{+proj=utm} \code{+zone=12} \code{+datum=NAD83} 
\code{+units=m} \code{+no_defs} \code{+ellps=GRS80} \code{+towgs84=0,0,0", 
meaning among other things that the coordinates are projected zone 12 UTM's in meters. 
The rectangular bounding box of all polygons is
| min | max | |
| x | 495506 | 1084419 | 
| y | 4538294 | 5006162 | 
1  | 
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.