| Country | Spain (ES) |
| UN/LOCODE | ERR |
| Name | Sierra |
| Name Without Diacritics | Sierra |
| Region | S |
| Function Code | --3----- |
| Function | Road |
| Status Code | RL (Recognised Location) |
| Date | 1201 |
| Timezone | Europe/Madrid |
| Location (UN Format) | 4323N 00414W |
| Latitude Longitude | 38.5607, -1.6588 |