Annual reports by the Indiana State Geologist, from 1837 to 1994. The majority are hard bound full reports covering multiple disciplines under Indiana natural resources. Some copies only cover the Indiana Geological Survey.
The Indiana Geological Survey has a library of reference collections and miscellaneous sources of coal information that IGS researchers have collected over the years. The library includes industry publications, annual reports, miscellaneous information pamphlets and books. The materials cover Indiana, the United States, or coal in-general. Much of the material is dated but could be used for historical purpose.
