 | |
|---|---|
 A666 near Farnworth | |
| Major junctions | |
| South end | Pendlebury 53°30′09″N 2°18′37″W / 53.5025°N 2.3103°W |
| North end | Langho 53°48′31″N 2°26′41″W / 53.8086°N 2.4448°W |
| Location | |
| Country | United Kingdom |
| Primary destinations | |
| Road network | |
The A666 is a major road in Greater Manchester and Lancashire, England.