| Key | Value |
| building | bunker |
| check_date | 2021-07-09 |
| location | underground |
| military | bunker |
| note:location | Either underground proper, or very overgrown. |
| note:source | Tagging this way is intentional, having given it serious thought. Trawling through changeset history while out surveying is impractical. History metadata isn't readily available in surveying editors, yet. |
| source:note:location | survey |
| survey:date | 2021-07-09 |