Underground Mines in the Survant Coal Member (Pennsylvanian) of Indiana
| Title | Underground Mines in the Survant Coal Member (Pennsylvanian) of Indiana PDF eBook |
| Author | Denver Harper |
| Publisher | |
| Pages | 32 |
| Release | 1988 |
| Genre | Coal |
| ISBN |
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Underground Mines in the Hymera Coal Member (Pennsylvanian) of Indiana
| Title | Underground Mines in the Hymera Coal Member (Pennsylvanian) of Indiana PDF eBook |
| Author | Denver Harper |
| Publisher | |
| Pages | 20 |
| Release | 1994 |
| Genre | Coal mines and mining |
| ISBN |
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Mining History of the Francisco, Sommerville, and Liberty Underground Coal Mines in Eastern County, Indiana (Springfield Coal Member, Pennsylvanian)
| Title | Mining History of the Francisco, Sommerville, and Liberty Underground Coal Mines in Eastern County, Indiana (Springfield Coal Member, Pennsylvanian) PDF eBook |
| Author | Penny Alano |
| Publisher | |
| Pages | 29 |
| Release | 1998 |
| Genre | |
| ISBN |
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Mining History of the Francisco, Somerville, and Liberty Underground Coal Mines in Eastern Gibson County, Indiana (Springfield Coal Member, Pennsylvanian)
| Title | Mining History of the Francisco, Somerville, and Liberty Underground Coal Mines in Eastern Gibson County, Indiana (Springfield Coal Member, Pennsylvanian) PDF eBook |
| Author | Penny Alano |
| Publisher | |
| Pages | 30 |
| Release | 1998 |
| Genre | Coal |
| ISBN |
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Coal Mining in Sullivan County, Indiana
| Title | Coal Mining in Sullivan County, Indiana PDF eBook |
| Author | Denver Harper |
| Publisher | |
| Pages | 60 |
| Release | 1988 |
| Genre | Coal |
| ISBN |
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Coalbed Methane in Indiana
| Title | Coalbed Methane in Indiana PDF eBook |
| Author | Denver Harper |
| Publisher | |
| Pages | 28 |
| Release | 1991 |
| Genre | Coalbed methane |
| ISBN |
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Coal Mining in Knox County, Indiana
| Title | Coal Mining in Knox County, Indiana PDF eBook |
| Author | Denver Harper |
| Publisher | |
| Pages | 36 |
| Release | 1995 |
| Genre | Coal mines and mining |
| ISBN |
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