River Irk

River Irk
The Irk at Crumpsall
Location of the mouth within Greater Manchester
Location
CountryEngland
Physical characteristics
Source 
  locationRoyton
Mouth 
  location
River Irwell
  coordinates
53°29′12.93″N 2°14′42.13″W / 53.4869250°N 2.2450361°W / 53.4869250; -2.2450361

The River Irk is a river in the historic county of Lancashire in North West England that flows through the northern part of Greater Manchester. It rises to the east of Royton and runs west past Chadderton, Middleton and Blackley before merging with the River Irwell, a tributary of the River Mersey, in the centre of Manchester.