> Is there a process by which I can clip/trim a copy of the raster DEM to >the boundary of the vector used for the mask? g.region -a raster=Yourraster vector=yourvector r.mask vector=yourvector r.mapcalc newraster=yourraster ? ----- best regards Helmut -- Sent from: http://osgeo-org.1560.x6.nabble.com/Grass-Users-f3884509.html