refilling of shafts
From Underfoot
Q1262844
Q1262844
maintenance-free and effective closure of a disused shaft
| Type | Subtype | Date | Description | Notes | Source |
|---|---|---|---|---|---|
maintenance-free and effective closure of a disused shaft
Wikidata
shaft sealing
underground structure, mine shaft,
mine shaft, underground structure,
Location: KML, Cluster Map, Maps,
| Type | Subtype | Date | Description | Notes | Source |
|---|---|---|---|---|---|