Global InformationGrinton Smelt Mill information
 Grinton Mill and new (2020) rock-amour watercourse | |
| Location | |
|---|---|
  Grinton Smelt Mill Location in North Yorkshire | |
| Location | Grinton |
| County | North Yorkshire |
| Country | England |
| Coordinates | 54°21′48″N 1°55′35″W / 54.3633°N 1.9264°W |
| Production | |
| Products | Lead |
| Production | 100 tonnes (110 tons) |
| Financial year | 1739–1740 |
| History | |
| Opened | 1822 |
| Closed | 1886–1895 |
Grinton Smelt Mill (also known as How Mill) is a ruined lead mining and processing site on Cogden Moor, south of Grinton in Swaledale, North Yorkshire, England. The site was built in its present form c. 1820 for the specific purpose of processing lead won by hushing and hydraulic mining. The buildings and stone flue are now grade II* listed structures and all are scheduled monuments. The site is recognised as being the best preserved lead mining site in the Yorkshire Dales.
A mill had existed on the site since the early 18th century, but the later addition of a 980-foot (300 m) flue allowed workers to recover waste lead from the flue.