SeerMapper2010West - Release 1.2.5 - January 8, 2021 Initial release of SeerMapper2010West supplemental U. S. 2010 census tract boundary data for use with the SeerMapper package. This package contains the U. S. 2010 census tract boundaries for any state west of the Mississippi River that does not contain a U. S. Seer Area. Release 1.2.2 - June 8, 2020 Moved the census tract data for NY, MA, ID, IO and WI from the East and West boundary packages to the Regs package. Release 1.2.3 - June 17, 2020 Modified the documentation. Release 1.2.4 - June 22, 2020 Changed the maintainer. Release 1.2.5 - January 8, 2021 Rebuilt the CRS objects to meet the requirements of the rgdal and sp.