The anthracite coal that is strip mined is mainly on the flat pitch, a basin. As in the way that a soft coal vein lays. Which leaves the straight pitch, which was normally deep mined. When the vein lays on the straight pitch, your not dealing with a bed of coal under the overburden. Instead of a bed of coal that could be 30 foot thick, you get a seam of coal thats 30 foot wide. Yes it could reach depths of 2500 feet, but no surface mine is getting that. The seams normally outcrop to the surface, thats where we set up our deep mines and chase the coal vein.Thanks to MSHA, they just about put us all out of business. We are on the rebound again. Deep mined Anthracite for the majority is cheaper, and is of a better quality. Due to the lack of overburden that has to be removed to get a finished product.