vs John Dozers | Heavy Equipment Forums
· I later became a Reclamation Specialist and was on coal mines in KY, VA, West VA, TN, CO, WY, MT, North Dakota, and Alaska. The predominant machine was . In fact, I do not remember a John machine on any of the coal mines I inspected in all those years. In 1987, I became a Remedial Project Manager on the largest Superfund Site in the US.