Economy
Coal Mines
| Mine Index | Coal Company, Mine Name | Quadrangle | County |
|---|---|---|---|
| 3218 | J. W. Bixby, Bixby Mine Harris and Robertson, Harris and Robertson Mine Mottin and Layman, Mottin and Layman Mine Economy Coal and Mining Company, Economy Mine Mabel Foelsch, Economy Mine | Walsh | Randolph |
| 3785 | Economy Coal and Mining Company, Economy Mine | Danville NW | Vermilion |
| 90571079 | Economy Coal Company, Economy Mine | Canton Banner | Fulton |