The Property lies in the Central Appalachian Coal basin in the Appalachian Plateau physiographic province.

Coal seams and zones of economic significance typically range between 24 and 48 inches in thickness, with relatively little structural deformation.

Strata on the Property are mostly of the Pennsylvanian-age Kanawha Formation and the older, lower Beckley and Fire Creek seams are part of the New River Formation of the Pottsville Series. The rock formations between the coal seams are characterized by large proportions of sandstone interspersed with shale units.

Coal seams with remaining reserve or resource potential evaluated within this TRS include, in descending stratigraphic order the: Upper, Middle and Lower Clarion; Stockton, Upper Coalburg, Coalburg, Lower Coalburg, Upper Winifrede Rider, Upper Winifrede, Winifrede, Lower Winifrede, Upper Chilton A, Middle Chilton A, Chilton A Upper Split, Chilton A Lower Split, Chilton A, Chilton Rider, Upper Chilton, Lower Chilton, Chilton, Upper Hernshaw, Lower Hernshaw, Upper Cedar Grove Upper Split, Upper Cedar Grove Lower Split, Middle Cedar Grove, Lower Cedar Grove Upper Split, Lower Cedar Grove, Peerless Upper Split, Peerless Lower Split, Peerless C, Upper No. 2 Gas, Lower No. 2 Gas, Powellton, Lower Powellton, Powellton Lower Split, Powellton Lower Split Upper, Upper Eagle Rider 2, Powellton Lower Split Lower, Upper Eagle Rider, Upper Eagle, Eagle A, Eagle, Little Eagle, Glen Alum Tunnel, Bec ........

Twenty underground mining areas were modeled and tested economically. Once the Resources were calculated, mine plans were created to project operating each resource area to depletion, with crews and equipment scheduled to move to subsequent mining areas as depletion occurs.

The Marfork Mining Complex currently operates four underground mines with a total of seven (7) operating sections. The Horse Creek Eagle mine is phasing out of production as reserves deplete and one of the operating sections will be introduced into Panther Eagle Mine. The Glen Alum mine is in the Workman Creek surface area and is currently active with one operating section. The projected underground mines are set up similarly to the currently active operation. Black Eagle will operate three production sections, Panther Eagle will operate two production sections and the Glen Alum Mine will operate two production sections. All sections are configured with dual continuous miners in a super section operation. In all cases, mines are forecasted to produce coal two shifts each day. Production is scheduled Monday through Friday each week, and every other Saturday.

Surface mines
The Workman Surface reserve area consists of mountain-top, contour and highwall mining of 25 seams: from the Upper Clarian to the Little Eagle -- a difference of over 1,000 vertical feet. Deep mining has taken place in the Lower Hernshaw, Middle Cedar Grove, Lower Cedar Grove, Lower 2 Gas, Powellton, Upper Eagle, ........

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