Here are some resources from a variety of sources. For historical coal data see the Minerals Handbook (US Bureau of Mines) housed in the Science Library periodicals collection: 1932-1988, 1989-2010 (incomplete) TN23.U6 (Periodicals), 4th Floor.
The location, quantity, and physical and chemical characteristics of U.S. coal and coal-related deposits have been entered into databases developed by the U.S. Geological Survey. The National Coal Resources Data System (NCRDS) databases consist of two primary components: (1) areally-located data (USCOAL and NEWCOAL), which contain published and other publicly available coal resource information on an areal basis, such as state, county, township, or coal field; and (2) spatially-located data (COALQUAL), which contains basic point source coal information (e.g., field observations, sample analyses) including geodetic location; bed thickness; lithology; depth of burial; moisture, ash, and sulfur content; heat value; and major-, minor-, and trace-element content. (NEWCOAL is not accessible at this time.)
The majority of source documents cited in USCOAL and NEWCOAL are those in USGS Bulletin 1412 Remaining Coal Resources of the United States as of January 1, 1974 (Averitt, 1975). The exceptions to this are instances wherein more recent detailed reports have been published or older, but more detailed reports by the same author or agency are available.
Resource estimates have been entered into the NCRDS databases as they are presented in the source document. Production data have not been incorporated to bring the resource estimate up to date. This means that if the source document provides an estimate of original resources, that estimate is entered into NCRDS, or if the resources in the source document are "remaining in the ground as of January 1, 1959," they are stored in NCRDS as "remaining as of January 1, 1959."
This coal resource inventory may be updated or modified as new data for geographic areas become available or as previously assessed areas are restudied, reevaluated, and reestimated.
The National Mine Map Repository (NMMR) has recently added the capability for the public to search the index of all mine maps in the collection. This new search capability will permit the public and other customers to directly identify mine maps in the collection. Additional search capabilities are planned in the future, including the ability to perform a radius spatial search based on a zip code.