Spatial data is the modern means of digitally mapping features on the earth. Spatial data is used in geographic information systems (GIS) which merge cartography, statistical analysis and database techniques.

The EPA uses spatial data representing significant natural features and infrastructure, as well as legal and administrative boundaries, to analyse and assess proposals or issues.

The EPA also produces and provides spatial data representing its work. Often the basis of the maps within EPA documents, this spatial data accurately communicates legal, administrative or scientific boundaries.

Copies of key spatial data provided by the EPA are available for free download below. Each package is a compressed set of files in a ‘zip’ file containing the boundaries in a variety of formats:

• Shapefile for use in GIS software
• DWG for use in CAD software
• KML for use in Google Earth.

To use, please download the package you want and uncompress using your operating system or software such as WinZip or 7Zip. These files can then be loaded into the GIS, Cad or Google Earth software of your choice.