Upper Big Branch Mine Eagle Seam zone map (copy), 2010 June 26, Box: 92, Folder: 12. J. Davitt McAteer Papers regarding Mining Safety, A&M 4219. West Virginia and Regional History Center.
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Upper Big Branch Mine Eagle Seam zone map (copy), 2010 June 26, Box: 92, Folder: 12. J. Davitt McAteer Papers regarding Mining Safety, A&M 4219. West Virginia and Regional History Center. https://archives.lib.wvu.edu/repositories/2/archival_objects/113101 Accessed November 23, 2024.