This is the Debian package of the GNU R package known as "mapdata".
The upstream authors are as follows:

Original S code by Richard A. Becker and Allan R. Wilks.
R version by Ray Brownrigg <ray@mcs.vuw.ac.nz>

This package was created by Chris Lawrence <lawrencc@debian.org>,
based on Dirk Eddelbuettel's packaging of r-cran-car.

The sources were downloaded from 
	http://cran.us.r-project.org/src/contrib/

The package was renamed from its upstream name 'mapdata' to
'r-cran-mapdata' to fit the pattern of CRAN (and non-CRAN) packages
for R.

This package is Copyright (C) 2007 Richard A. Becker, Allan R. Wilks,
and Ray Brownrigg.  It has been placed under the GNU General Public
License.  On Debian systems, the GPL is included in the file
/usr/share/common-licenses/GPL-2.

The upstream DESCRIPTION file for this package is available in
/usr/lib/R/site-library/mapdata/