After running for approximately 1 km through marshy moorland, the brook empties into the Chew Reservoir , built in 1912 and the highest constructed reservoir in England  at the time ( above sea level; Cow Green Reservoir, near Middleton in Teesdale in County Durham, is the current holder, completed in 1971).
The brook, which covers approximately 1 kilometer through swampy moorland, eventually merges into Chew Reservoir, built in 1912 and the highest constructed reservoir in England at that time (above sea level; Cow Green Reservoir, situated near Middleton in Teesdale in County Durham, is now the tallest, completed in 1971).