CMA 10m elevation
This is the Mallee and Wimmera portion of the Department of Sustainability and Environment's Statewide 10m Digital Terrain Model. The data has been contributed to improve management of the Mallee land resource, which is one of the goals of the Mallee CMA's Regional Catchment Strategy. The data is elevation in meters above sea level, on a 10 x 10m grid. Original data can be accessed via www.land.vic.gov.au/vicmapdata.

GSV Gamma radiometrics
This data is GeoScience Victoria's airborne Gamma Radio Spectrometry survey of victoria from 1994. The data is public domain and was downloaded from Geoscience Australia's Geophysical Archive Data Delivery System. The data are measured gamma-ray emissions from isotopes of potassium, thorium and uranium, and the total of all emissions, on a 50 x 50m grid. The data was collected by an airborne sensor and has some noticeable east-west artifacts, particularly south of Swan Hill and east of Birchip. The measurements may relate to differences in parent material of soil close to the surface (ie. 0-30 cm). 

GSV Magnetics
This data is Geoscience Victoria's airborne Magnetics data, obtained at the same time (and from the same source) as the radiometrics data. The data is a measurement of the earth's magnetic field on a 50 x 50m grid. The measurements relate to depth to bedrock and may be of interest in some areas.

Radmap 2009
This data is Minty et al.(2009)'s Radiometric Map of Australia. The data was obtained from the Geophysical Archive Data Delivery System. The data are estimates of soil potassium (%) and thorium and uranium (ppm), and the total of all three, on a 100 x 100m grid. This is less precise than the GSV Gamma radiometrics, but filtering has been used to remove artifacts.

SRTM Elevation
This data is NASA's Shuttle Radar Topographic Mission data. The data is public domain, distributed by the CGIAR Consortium for Spatial Information. The data is elevation in meters above sea level, on a 90x 90m grid. It was obtained in 2007 and may not be the latest version. The measurements are a useful source of elevation data in South Australia and New South Wales.

Google Earth
Large-scale images of parts of GSV Gamma radiometrics, Magnetics, and SRTM Elevation, have been made into Google Earth 'kmz' files and can be downloaded here. The images can help to make sense of the small-scale variation visible on-farm.

Help
Click-and-drag to move the map. Scroll to zoom (or use the buttons on the map).
Click on the corners of the area you want data for. The area selected will become blue.
Use the red button to clear the map if you make a mistake.
If you select a large area (>5000 hectares) it may be clipped to keep email under 5MB.

Fill out your email address, ABN, select the datum/coordinate you want, check the agreement box, and click 'Finished'. Your data (all available for the points you select) should be emailed in the next few days.

Disclaimer
The best efforts have been made to ensure that data from this page is accurate and faithful to the original source. Users must accept that there may be errors, or that the data may be out of date, or simply unsuited to their purpose, before basing any decision on it.