Global Self-consistent Hierarchical High-resolution Geography (GSHHG) is a high-resolution shoreline data set amalgamated from three databases: World Vector Shorelines (WVS), CIA World Data Bank II (WDBII), and Atlas of the Cryosphere (AC). GSHHG contains vector descriptions at five different resolutions of land outlines, lakes, rivers, and political boundaries. To read and process the data you should install GMT, the Generic Mapping Tools (port gmt5).

WWW: http://www.soest.hawaii.edu/pwessel/gshhg/index.html
