Grading on the Central Pacific was done by hand, relying primarily on Chinese using picks, shovels, and horse-drawn dump carts, though black powder was freely used to break hard soil and move rocks aside. This scene is the 170-foot deep excavation at Prospect Hill, Calif. It dates from summer 1866, when more than a thousand […]
Tracklayers reach incredible goals on the transcontinental railroad PART 2
