The files cover the urban area of the city of Ottawa. The map series was originally by the National Capital Commission and then joint with the Regional Municipality of Ottawa-Carleton, in 1999 by the RMOC only and with amalgamation in 2001 now by the City of Ottawa. No attribute data is included with the data. Also available in shapefile format are contiguous files. Files are seamless but there will be inconsistencies in coverage (edge matching) due to the difference in dates as the data was collected at different years (from City of Ottawa data description).
Vector data files include roads, sidewalks, houses, buildings, vegetation and water.