It shows the results of a terrain analysis model, as documented on the index page.
This map is based on a standard 1:100,000 scale map tile (ref: GeoScience Australia), outlines in grey. Grid north is to the top of the page. Note your local variations for true and magnetic north before using those.
The limited annotation data are from GA's 1:1,000,000 scale products.
This map shows a 10km map grid, on MGA94 Zone 50.
To save the map, wrong-click on it and select 'Save picture as...' or the equivalent option, depending on your browser.