:exclamation: This is a read-only mirror of the CRAN R package repository. USAboundaries — Historical and Contemporary Boundaries of the United States of America. Homepage: http://lincolnmullen.com/software/usaboundaries/, https://github.com/ropensci/USAboundaries Report bugs for this package: https://github.com/ropensci/USAboundaries/issues - View it on GitHub