Known entrances to abandoned underground coal mines including hoisting shafts, air/escape shafts, and slopes (adits).
© Iowa Department of Natural Resources; Iowa Geological Survey
Information | |
|---|---|
| Regions | Iowa, Grant |
Technical Details | |
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| Layer ID | 99552 |
| Data type | Vector point |
| Feature count | 1663 |
| Attributes | Tier_range_section, Mine_Name, Last_Map_ID, County, SiteID, Entrance_Type |
| Services | Vector Query API |
History | |
|---|---|
| Added | |
| Revisions | 1 - Browse all revisions |
| Current revision | Imported on Feb. 20, 2019 from Esri JSON in WGS 84 / Pseudo-Mercator. |