| Buttermere | |
|---|---|
 View of lake with Fleetwith Pike in the background | |
  Buttermere Location in the Lake District National Park | |
 Map (1925) | |
| Location | Lake District |
| Coordinates | 54°32′N 3°16′W / 54.533°N 3.267°W |
| Lake type | Ribbon |
| Primary inflows | Gatesgarthdale Beck |
| Primary outflows | Buttermere Dubs |
| Basin countries | United Kingdom |
| Max. length | 2 km (2,200 yd) |
| Max. width | 0.57 km (620 yd) |
| Surface area | 0.93 km2 (0.36 sq mi) |
| Max. depth | 75 ft (23 m; 12.5 fathoms) |
| Shore length1 | 5.35 km (3 mi 571 yd) |
| Surface elevation | 329 ft (100 m) |
| Islands | 0 |
| 1 Shore length is not a well-defined measure. | |
Buttermere is a lake in the Lake District in North West England. It has a length of approximately 2 kilometres (1.2 mi) and a maximum width of 0.54 kilometres (0.34 mi), an area of 0.9 square kilometres (0.35 sq mi), a maximum depth of 28.6 metres (94 ft), and a surface elevation of 100.3 metres (329 ft) above sea level. Its primary outflow is Buttermere Dubs, a short stream which connects the lake to Crummock Water. From Crummock Water the River Cocker flows to Cockermouth, where it joins the River Derwent and finally enters the Irish Sea at Workington. The lake is in the unitary authority of Cumberland, and the ceremonial county of Cumbria.