Thesaurus Term/Concept: DRAINAGE LEVEL
| Identifier | 69099 |
|---|---|
| Class | MONUMENT TYPE |
| Status | Preferred |
| Index? | Yes |
| Scope Note | A horizontal tunnel dug specifically for draining, for example, a mine. |
| Identifier | 69099 |
|---|---|
| Class | MONUMENT TYPE |
| Status | Preferred |
| Index? | Yes |
| Scope Note | A horizontal tunnel dug specifically for draining, for example, a mine. |