River Vartry
 The River Vartry (Irish: Abhainn Fheartraí) is a river in the Republic of Ireland. It rises in Calary Bog under the Great Sugar Loaf mountain in north County Wicklow. In 1861 Parliament passed the Dublin Waterworks Act creating the project to dam the River Vartry in Roundwood to form the Vartry Reservoir. This was completed in 1865 and was the first clean source of water for Dublin replacing the canal water.