The Mawson Trail is a predominantly a cycling trail from George Road east of Adelaide heading north to the Outback town of Blinman in Flindners Range. Expect a mix of some, at times, difficult dirt/country roads, gravel tracks and wild farm roads with the odd hard surface road. You'll be in the wild often but still, have plenty of opportunities to land in towns for resupply particularly when travelling on a bike. With only a small bit of elevation gain, you'll often have stunning views of the surrounding area. On foot expect the trail to take anywhere from 50-70 days, and on bike from 7-20 days with a number of different factors like wind, the weather having an impact.
For those on bikes, expect the surface to be punishing when wet.