| Country | Portugal (PT) |
| UN/LOCODE | TZM |
| Name | Silveira |
| Name Without Diacritics | Silveira |
| Region | 11 |
| Function Code | -----6-- |
| Function | Multi-use Location |
| Status Code | RL (Recognised Location) |
| Date | 901 |
| Timezone | Europe/Lisbon |
| Location (UN Format) | 3907N 00922W |
| Latitude Longitude | 39.7222, -8.1454 |