The Topo250 map series provides topographic mapping for the New Zealand mainland, the Chatham Islands at 1:250,000 scale.
Along with the paper-based Topo250 map series, digital images of the maps are also publicly available.
Georeferenced raster digital images are provided at a resolution of 300 DPI. Georeferencing allows adjacent maps to be accurately and automatically aligned within GIS systems.
This version is provided without a grid or graticule ticks.
To create this product the grid, graticule, grid text and graticule text representations were termporarily removed and the text-clashing routines rerun to reinstate features previously masked by the grid and graticule text. It is possible that some road, railway and track names will not match those on previously generatedTopo250 Geotiffs. The names willl not be wrong, but simply not been placed using the cartographic text-placement routines normally run prior to a formal data release. Text on versions of the gridded and gridless products generated from Oct 2014 on will match.
For more information, and a description of the georeferencing keys: http://www.linz.govt.nz/topography/topo-maps/topo50/digital-images
LINZ and our predecessors have been responsible for national topographic mapping in New Zealand for more than a hundred years.
The first digital data at 1:250,000 scale was created in the late 80’s by scanning the 1:250,000 maps that existed at the time (known as the NZMS 262 series, which replaced the earlier NZMS 18 series)
The NZMS 262 series were generalised from the NZMS 260 series.
The Topo250 map series were compiled from a mix of information from the NZMS 262 series, and that from the Topo50.
Details of releases updates of the Topo250 maps and data will be posted at http://www.linz.govt.nz/docs/topography/250-sheet-history.xls