Coal Mine Entrances (0)
| Air shaft |
| Air slope |
| Escape shaft |
| Escape way |
| Hoisting shaft |
| Slope, adit |
Coal Mines (point locations) (1)
| Point location, 1/4 section |
| Point location, w/in section |
Coal Mines (known/approx. extent) (2)
| Surveyed map, known loc'n and extent |
| No map, approx. extent, known loc'n |
| Surveyed map, loc'n known to section, known extent |
| Surface mine |
Coal Mines (known/approx. extent) (3)
| Surveyed map, known loc'n and extent |
|
| No map, approx. extent, known loc'n |
| Surveyed map, poor location |
| Surface mine |
Coal Mines (4)
coalmine_names (7)
|
