USAboundaries: Historical and Contemporary Boundaries of the United States of
America
The boundaries for geographical units in the United States of
    America contained in this package include state, county, congressional
    district, and zip code tabulation area. Contemporary boundaries are provided
    by the U.S. Census Bureau (public domain). Historical boundaries for the
    years from 1629 to 2000 are provided form the Newberry Library's 'Atlas of
    Historical County Boundaries' (licensed CC BY-NC-SA). Additional  data is
    provided in the 'USAboundariesData' package; this package provides an
    interface to access that data.
| Version: | 
0.4.0 | 
| Depends: | 
R (≥ 3.1.1) | 
| Suggests: | 
sf (≥ 1.0.0), testthat (≥ 0.9.1), USAboundariesData (≥
0.4.0), covr, knitr, rmarkdown, dplyr, leaflet | 
| Published: | 
2021-10-12 | 
| Author: | 
Lincoln Mullen  
    [aut, cre],
  Jordan Bratt  
    [aut],
  United States Census Bureau [cph] | 
| Maintainer: | 
Lincoln Mullen  <lincoln at lincolnmullen.com> | 
| BugReports: | 
https://github.com/ropensci/USAboundaries/issues | 
| License: | 
MIT + file LICENSE | 
| URL: | 
http://lincolnmullen.com/software/usaboundaries/,
https://github.com/ropensci/USAboundaries | 
| NeedsCompilation: | 
no | 
| Additional_repositories: | 
https://ropensci.r-universe.dev | 
| Citation: | 
USAboundaries citation info  | 
| Materials: | 
README NEWS  | 
| CRAN checks: | 
USAboundaries results | 
Documentation:
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