4wd on a river crossing.

Additional Resources

Maps

Refer to the main maps page for distance markers, et al.

Geoscience Australia provide downloadable topographic maps
50k Map Index, most from northern coastlines, minimal others
100k Map Index, most coastal regions excluding Tasmania
250k Map Index, complete coverage
1 Million Map Index, complete coverage

The Federal Government's National Maps is a useful online topological map with lots of additional data providers like the SRTM 1 sec DEM data set.

Sentinel Hub is a great tool for viewing near real time satellite data including Sentinel, Landsat, and other Earth observation imagery.

Queensland (QLD)
An online tool QTopo that allows you to download 1:100K to 1:25K topological maps and it even allows you to generate your own custom topo maps of areas of interest.
South Australia (SA)
Paid PDF downloads or browse online.
GetLost Maps
Free topographical maps that you can download directly from their website as well as on Avenza Maps.