History of Mining Equipment Practices
· History of Mining Equipment Practices. History of Mining Equipment Practices. Post navigation. ... 8 to 18ton steam locomotives; ore was loaded into railroad cars hauled by 45 to 70 ... removing 8,000,000 cubic yards of stripping at the rate of 2,000,000 cubic yards per year to uncover 6,000,000 tons of ore for openpit mining.