One of the most vital, serious and perplexing problems facing the nation today is to understand our coal resources. Are they best categorized as resources, should they be upgraded to reserves or discounted completely. If clearly in the reserves category, what actually is the nature of the material - what is the heat value, ash content, sulfur, alkali, volatile matter, and moisture. Of equal importance - what is the true seam thickness, what are the washability characteristics, how many partings are there and what is their thickness? Is the seam uniform in thickness, what will be the roof and floor conditions, are conditions suitable for longwall equipment?