UK Upland Waters Monitoring Network (UK UWMN) site. Narrator Brook lies in the Dartmoor National Park, south-west England. The study catchment covers 446 ha and drains into the Burrator Reservoir. The altitude at the reservoir inflow is 225 m and a maximum altitude is reached at Cairn Eylesbarrow (456 m). The underlying geology is composed of granite and soils consist of brown podsols, stagnopodsols and stagnohumic gleys. Molinia dominated blanket bog comprises about two thirds of the catchment, with acid grassland invaded by Pteridium, conifers, deciduous woodland and valley bog constituting the remainder. The catchment is utilised for low-intensity grazing by sheep, cattle and ponies and a small area at the western end is common land, but other land-management is minimal. The conifers, which are not planted to the stream edge, were planted in 1931-1933 and thinned (and replanted in places) between 1980 and 1988. They now fall within a Woodland Grant Scheme. Annual rainfall is c. 1800 mm. Note: The area is the size of the catchment.