| Classified Harvesting Area | Catfirth Mussels 1 |
| Classified Area Description | area bounded by lines drawn between HU 4411 5357 and HU 4481 5354, and from HU 4482 5263 to HU 4541 5297 to HU 4603 5286 to HU 4555 5235 to HU 4472 5200, extending to MHWS along the western shore of the firth and the west side of Little Holm |
| Biotoxin POD Number | |
| Local Authority Shellfish Region | Shetland Islands Council |
| SIN Number | SI-816-2144 |
| Site Name | East of Little Holm |
| National Grid Reference | |