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The interface between GRASS and R statistical language (R) is currently undergoing significant changes (Bivand, 2005). The new design is embedded in the new efforts to develop coherent spatial classes for R. The basic website for the new GRASS interface is hosted at SourceForge (http://r-spatial.sourceforge.net). The new package is named ``spgrass6''. The basic spatial object classes are maintained in the ``sp'' package. The additional ``spGDAL'' class is a wrapper for functions in the ``rgdal'' package, which interfaces to the GDAL library. Another package is ``spmaptools'', which is an interface to the SHAPE library.