Map of Consol No. 9 coal mine, site of the <a href="https://en.wikipedia.org/wiki/Farmington_Mine_disaster" class="extiw" title="wikipedia:Farmington Mine disaster">Farmington Mine disaster</a> in relation to surface roads and streams.  At the time of the disaster, the pink area was developed as a <a href="https://en.wikipedia.org/wiki/Room_and_pillar" class="extiw" title="wikipedia:Room and pillar">room and pillar</a> mine, while <a href="https://en.wikipedia.org/wiki/retreat_mining" class="extiw" title="wikipedia:retreat mining">retreat mining</a> had been completed in the brown area.  Highway names, town names and map scale added June 24, 2009 by the uploader, who extends no copyright claims over these additions.
Kashi Aminian, Lloyd English, Douglas Patchen, Hema Siriwardane, West Virginia University National Research Center for Coal and Energy,  and Charles D. Estes, Raymond L. Zahradnik, Appalacian-Pacific Coal Mine Methanr Power Company, LLC
Adapted from: Final Phase II Technical Report, THERMOACOUSTIC LIQUEFACTION OF COAL MINE METHANE TO PRODUCE LNG FOR HEAVY VEHICLE APPLICATIONS, U. S. Department of Energy, Page 19, <a rel="nofollow" class="external autonumber" href="https://www.osti.gov/bridge/servlets/purl/835866-ZeHF1l/native/835866.pdf">[1]</a>