ABSTRACTFluvial transportation has been studied at six sites along the River Västerdalälven in middle Sweden during 1977 and 1978. The total transportation was calculated to be 62,360 at the most upstream station and 193,660 metric tonnes at the most downstream station. 81–87 % of the total transported amounts are dissolved solids. Bed-load transportation constitutes only 1–2 % of the total. Differences in transportation along the river are found to be due to changes in fall profile and sediment composition. No effects of relative relief or land use practices can be detected.