Map of northwest Mexico obtained from GSHHG database (v2.3.7).
Usage
data("dmap")
Arguments
Details
This intermediate resolution map was imported from the Global Self-consistent, Hierarchical, High-resolution Geography Database by means of Rgshhs function from maptools package.
References
Wessel, P. and Smith, W. H. F. 1996 A Global Self-consistent, Hierarchical, High-resolution Shoreline Database, Journal of Geophysical Research, 101, 8741--8743.