sample image		filename: v4_dcw_rail_lin formats: Shapefile (ascii) GIS data type: lines number of records: 27256 version note: New Projection V4, please use v4_dcw_rail_lin Derived from Digital Chart of the World (DCW) dataset. No feature names provided. For general reference purposes only. This dataset is a reprojection of the Penn State DCW files which have been available for public download since 1997. [DCW images show 1990 Provinces as background]
production notes - data sources