Strip mining

[railroader9731]

Ok i found a book of mine that may help with info so here it goes lester. Surface mining is practical when a coal seam is about 200ft down or less. As you can fogure top soil/earth is removed by loaders and trackhoes to expose the coal. Once exsposed the coal is hauled to the top by trucks to a hopper located above a crusher. The crusher then crushes the coal into 2" size or whats preferd by the customers. Then the coal is conveyed into waiting silos or if you want tipples that stand above the tracks. I hope this helps