A 100Â ka record of fluvial activity in the Fitzroy River Basin, tropical northeastern Australia

► Quaternary fluvial activity indicates large-scale fluvial adjustment over 100 ky ► OSL dating indicates bedload activity: at 105-85 ka, at 50-40 ka, and at 30-10 ka. Fluvial activity across the LGM casts new light on river response. ► The absence of a Holocene signal is at odds with accounts from elsewhere.