Petrified wood and chalcedony on the gravel bars of the Fitzroy River at Riverslea crossing, turn off the Capricorn highway at Gogango, west of Westwood and cross the railway line. There is a sign up saying Riverslea. About 15km of decent condition dirt road then you reach a low causeway across the river. The gravel banks were still largely under water a couple of weeks ago but more should be exposed by now. I have a thread about the spot on this forum somewhere.
Best stuff is the petrified wood, there is some interesting looking coloured bits and some with agate through it. Good idea to keep back from the waters edge, there are crocodiles in the riverYou should fill a 2-gallon bucket in a few hours.