And amazingly, Google has mapped a lot of the main roads that cut through all of that wilderness. It's impressive enough that those roads were built and are still maintained, but getting people to drive it all so it could be mapped in on-the-ground 3D is a whole other level.
A quick search says it pays $15-$17 an hour. Not hard to imagine someone in their early 20's with no other commitments agreeing to a month long paid road trip through the outback...