But the extreme roughness of the walking confined us in common practice to the platform, and indeed to those parts of it that were most easily accessible along the line of rails. The rails came straight forward from the shaft, here and there overgrown with little green bushes, but still entire, and still carrying a truck, which it was Lloyd's delight to trundle to and fro by the hour with various ladings. About midway down the platform, the railroad trended to the right, leaving our house and coasting along the far side within a few yards of the madronas and the forge, and not far off the latter, ended in a sort of platform on the edge of the dump. There, in old days, the trucks were tipped, and their load sent thundering down the chute. There, besides, was the only spot where we could approach the margin of the dump. Anywhere else, you took your life in your right hand when you came within a yard and a half to peer over. For at any moment the dump might begin to slide and carry you down and bury you below its ruins. Indeed, the neighbourhood of an old mine is a place beset with dangers. For as still as Silverado was, at any moment the report of rotten wood might tell us that the platform had fallen into the shaft; the dump might begin to pour into the road below; or a wedge slip in the great upright seam, and hundreds of tons of mountain bury the scene of our encampment. I have already compared the dump to a rampart, built certainly by some rude people, and for prehistoric wars. It was likewise a frontier. All below was green and woodland, the tall pines soaring one above another, each with a firm outline and full spread of bough. All above was arid, rocky, and bald. The great spout of broken mineral, that had dammed the canyon up, was a creature of man's handiwork, its material dug out with a pick and powder, and spread by the service of the trucks. But nature herself, in that upper district, seemed to have had an eye to nothing besides mining; and even the natural hillside was all sliding gravel and precarious boulder. Close at the margin of the well leaves would decay to skeletons and mummies, which at length some stronger gust would carry clear of the canyon and scatter in the subjacent woods. Even moisture and decaying vegetable matter could not, with all nature's alchemy, concoct enough soil to nourish a few poor grasses. It is the same, they say, in the neighbourhood of all silver mines; the nature of that precious rock being stubborn with quartz and poisonous with cinnabar. Both were plenty in our Silverado. The stones sparkled white in the sunshine with quartz; they were all stained red with cinnabar. Here, doubtless, came the Indians of yore to paint their faces for the war-path; and cinnabar, if I remember rightly, was one of the few articles of Indian commerce. Now, the Crown Prince had it in his undisturbed possession, to pound down and slake, and paint his rude designs with. But to me it had always