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| River Esk | |
|---|---|
 | |
  | |
| Location | |
| Country | Scotland |
| Region | Midlothian, East Lothian |
| Physical characteristics | |
| Mouth | Firth of Forth |
• coordinates | 55°56′40″N 3°03′05″W / 55.94453°N 3.05137°W |
The River Esk (Brythonic: Isca (water), Scottish Gaelic: Easg (water)), also called the Lothian Esk, is a river that flows through Midlothian and East Lothian, Scotland.
It initially runs as two separate rivers: the North Esk and the South Esk.