Carbon Highwall Mining Llc Mining Machine mining
Contour Highwall Mining Aspen Highwall Mining LLC Operated SHM Machine 59 and auxiliary support equipment leased from affiliated company Contour Highwall Mining LLC Aspen Highwall Mining with the 59 machine set depth record in a 28 inch coal seam of 1030 feet while cutting 33 inches with 98 consecutive holes over 1000 ft depth Learn. Read More