This paper aims to compare predicted upland erosion rates following forest disturbances associated with fuel management, such as harvesting, thinning, prescribed fire and road networks, to erosion rates following wildfires. The performance of the Water Erosion Prediction Project model in understanding the source, production and attenuation of sediment from upland forested catchments in western Montana and western Oregon, USA, is explored. Suggestions to improve model performance, especially in sediment and flood routing components, are given.