Results: 1 - 2 of 2
Dec 31, 1966
Earth Sciences Report
… report discusses Ardley zone coal resources in the central Red … the zone, and also a number of coal deposits that have received … 4 units: a coaly shale; an upper coal seam 4 to 6 feet thick with a …
Apr 30, 1983
Open File Report
… to a rejuvenated interest in coal resources and further recovery …