| **Field Name** | **Type** | **Mode** | **Description** | **Example** |
|---|---|---|---|---|
| `geo_id` | `STRING` | `NULLABLE` | The primary identifier for the region. For S2 cell datasets, this is the S2 cell token represented as a hexadecimal string. Use this as your primary join key. | `80ead45` |
| `geo_name` | `STRING` | `NULLABLE` | The human-readable name for the region. Note: For S2 grid datasets, mathematical cells don't have standard names, so this column will contain the exact same token as `geo_id`. | `80ead45` |
| `administrative_area_level_1_id` | `STRING` | `NULLABLE` | The unique Google Maps Place ID for the top-level administrative boundary (for instance, State or Province). | `ChIJPV4oX_65j4ARVW8IJ6IJUYs` |
| `administrative_area_level_1_name` | `STRING` | `NULLABLE` | The human-readable name for the top-level boundary (for instance, 'California'). | `California` |
| `administrative_area_level_2_id` | `STRING` | `NULLABLE` | The unique Google Maps Place ID for the secondary administrative boundary (for instance, County or District). | `ChIJ1_-qb3ovlYAR5-g1FwCi4EQ` |
| `administrative_area_level_2_name` | `STRING` | `NULLABLE` | The human-readable name for the secondary boundary (for instance, 'Tulare County'). | `Tulare County` |
| `features` | `FLOAT` | `REPEATED` | The core 330-dimensional embedding vector, stored natively as an `ARRAY<FLOAT64>`. Each section corresponds to specific aggregated data signals. | `[0.1042, -0.0345, 0.8841, ...]` |