The railroad was begun by Mr. Meiggs in 1870. Starting from the sea, it ascends the narrow valley of the once sacred Rimac, rising five thousand feet in the first forty-six miles to a beautiful valley, where the people of Lima have found an attractive summer resort; then it follows a winding, giddy pathway along the edge of precipices and over bridges that seem suspended in the air, tunnels the Andes at an altitude of fifteen thousand six hundred and forty-five feet--the most elevated spot in the world where a piston-rod is moved by steam--and ends at Oroya, twelve thousand one hundred and seventy-eight feet above the sea. Between the coast and the summit there is not an inch of down grade, and the track has been forced through the mountains by a series of sixty-three tunnels, whose aggregate length is twenty-one thousand feet. The great tunnel of Galera, by which the pinnacle of the Andes is pierced, will be, when completed, three thousand eight hundred feet long, and will be the highest elevation on the earth’s surface where any such work has been undertaken. Besides boring the mountains of granite and blasting clefts along their sides to rest the track upon, deep cuttings and superb bridges, the system of reverse tangents had to be adopted in cañons that were too narrow for a curve. So the track zigzags up the mountain side on the switch and back-up principle, the trains taking one leap forward, and after being switched on to another track, another leap backward, until the summit is won; so that often there are four or five lines of track parallel to each other, one above another, on the mountain side. Almost the entire length of the road was made by blasting. There is no earth in sight except what was carted for use in ballasting, and the work of grading was done, not by the pick and shovel, but with the drill and hundreds of thousands of pounds of powder. [Illustration: INCA RUINS OF UNKNOWN AGE.]