Boone County coal mining district (historical)
E1888048
UNEXPLORED
The Boone County coal mining district (historical) was a once-prominent coal-producing area in central Iowa, centered around towns such as Madrid, that played a key role in the region’s early industrial and railroad development.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Boone County coal mining district (historical) canonical | 1 |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.