| Boundary tags |
| Admin. level | 4 |
| Boundary | Administrative |
| ISO3166-2 | CH-GR |
| name | Graubünden/Grischun/Grigioni |
| ref | GR |
| ref:CH:hls-dhs | 007391 |
| ref:CH:kantonsnum | 18 |
| ref:CH:UID | CHE-114.809.356 |
| ref:nuts:3 | CH056 |
| source | swissBOUNDARIES3D swisstopo 2011 |
| source:name:br | ofis publik ar brezhoneg |
| swisstopo:KANTONSNUM | 18 |
| type | Boundary |
| website | https://www.gr.ch |
| wikidata | Q11925 |
| wikimedia_commons | Category:Canton of Graubünden |
| wikipedia | de:Kanton Graubünden |
| wikipedia:it | Canton Grigioni |
| wikipedia:rm | Chantun Grischun |