A collection of graphs showing the elevation and extent of river profiles for the Pacific, Arctic, Atlantic and Hudson Bay drainage areas. The graphs are accompanied by a supplementary map at a scale of 1:50 500 000, showing the locations of drainage divides, major rivers or river systems and major tributaries.
Choose one of the following maps:
For details please read the GeoGratis Licence Agreement for Unrestricted Use on the Web page GeoGratis Important Notices.