| Site of Special Scientific Interest | |
 | |
  Location within Somerset | |
| Location | Avon |
|---|---|
| Grid reference | ST761625 |
| Coordinates | 51°21′40″N 2°20′41″W / 51.36106°N 2.34465°W |
| Interest | Biological |
| Area | 15.37 acres (0.0622 km2; 0.02402 sq mi) |
| Notification | 1991 |
| Natural England website | |
Combe Down and Bathampton Down Quarries (grid reference ST761625) make up a 6.22 hectare (15.37 acre) Site of Special Scientific Interest (SSSI) in Bath and North East Somerset, England, important for its bat population. The disused quarries date from the 17th and 18th centuries and were the source of Bath stone for the city of Bath and elsewhere in the UK. A five-year project to stabilise the quarry workings was largely completed by November 2009.