| City Mill Lock | |
|---|---|
 Walkers next to the City Mill River in 2007 | |
 | |
| 51°32′00″N 0°00′33″W / 51.533323°N 0.009146°W | |
| Waterway | Bow Back Rivers River Lee |
| County | Newham, Greater London |
| Maintained by | Canal & River Trust |
| Operation | hydraulic |
City Mill River is part of the Bow Back Rivers in London, England. It formerly fed City Mill, used for the production of chemicals in the late nineteenth and early twentieth centuries. In the 1930s, the mill was removed and the river was isolated from the tides by the construction of locks at both ends. City Mill Lock, at the southern end, has been refurbished and reopened in 2010.