Soil erosion can harm rivers and soil quality. Researchers used a computer model to estimate sediment levels in a large, unmonitored area in Australia. The model predicted average sediment concentrations in the river, which matched actual measurements. The study found low soil loss in the area, but high sediment levels in the river could harm its health. The model accurately represented the current conditions and provided a reliable estimate of sediment yield, showing how erosion impacts sediment levels in rivers.