GIS reference

Use this section when a dataset arrives in an unfamiliar format or a layer appears in the wrong place.

• Coordinate systems in New Zealand
• NZTM2000
• WGS84 and Web Mercator
• Choosing a GIS file format
• GeoPackage
• Shapefile
• GeoJSON
• KML and KMZ
• CSV with coordinates
• GeoTIFF and COG
• File Geodatabase
• MBTiles and vector tiles
• LAS, LAZ and COPC
• NZVD2016 and vertical datums

Last reviewed: 26 August 2026