The River Moselle flows from Hornsey through Tottenham to the Lea.
The name derives from 'Mosse-Hill' in Hornsey, the high ground containing one of the river's sources. This may be the same root as that of Muswell Hill.
The Moselle orginally joined the Lea to the north of Tottenham Hale, but was subsequently diverted to flow into Pymmes Brook and from there into the Lea, south of Tottenham Lock.
Pymmes Brook flows from Hadley Wood to Tottenham Hale, but is now largely culverted. Salmons Brook joins Pymmes Brook at Angel Road, Tottenham.