River Sulby

• The longest river on the island, rising on Snaefell near the Sulby Reservoir and running north through Sulby Glen and then east, for 18 kilometers, before reaching the coast at Ramsey It is crossed in Ramsey by the Victorian Ramsey swing bridge, built in 1892.
• A tributary which rises to the west of Creg-ny-Baa, and flows south-west for about 4 km before joining the River Glass.