re: #384 HappyWarrior
Strip mining is mostly western Pa. The “hard” coal was NE PA and where I posted.List of Patches. You cannot go far in the woods between Scranton and Sunbury Pa and not stumble on an old mine, culm or a “pirate” dig.
Brocton Pa Tuscarora coal mine. Everywhere you see gray and black is culm and coal.