Results: 1 - 3 of 3
Mar 31, 2006
Geo-Note
… mineral exploration holes, 230 coal holes, a minimum of 5432 water … holes contain information about coal in the Clear Hills region; b) 96 of the 146 exploratory coal holes drilled in the Clear …
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 …