All along under the center of Virginia and Gold Hill, for a couple of miles, ran the great Comstock silver-lode - a vein of ore from fifty to eighty feet thick between its solid walls of rock - a vein as wide as some of New York's streets. I will remind the reader that in Pennsylvania a coal vein only eight feet wide is considered ample.

Virginia was a busy city of streets and houses above-ground. Under it was another busy city, down in the bowels of the earth, where a great population of men thronged in and out among an intricate maze of tunnels and drifts, flitting hither and thither under a winking sparkle of lights, and over their heads towered a vast web of interlocking timbers that held the walls of the gutted Comstock apart. These timbers were as large as a man's body, and the framework stretched upward so far that no eye could pierce to its top through the closing gloom. It was like peering up through the clean-picked ribs and bones of some colossal skeleton. Imagine such a framework two miles long, sixty feet wide, and higher than any church spire in America. Imagine this stately lattice-work stretching down Broadway, from the St. Nicholas to Wall Street, and a Fourth-of-July procession, reduced to pygmies, parading on top of it and flaunting their flags, high above the pinnacle of Trinity steeple. One can imagine that, but he cannot well imagine what that forest of timbers cost, from the time they were felled in the pineries beyond Washoe Lake, hauled up and around Mount Davidson at atrocious rates of freightage, then squared, let down into the deep maw of the mine and built up there. Twenty ample fortunes would not timber one of the greatest of those silver-mines. The Spanish proverb says it requires a gold-mine to "run" a silver one, and it is true. A beggar-with a silver-mine is a pitiable pauper indeed if he cannot sell.

I spoke of the underground Virginia as a city. The Gould & Curry is only one single mine under there, among a great many others; yet the Gould & Curry's streets of dismal drifts and tunnels were five miles in extent, altogether, and its population five hundred miners. Taken as a whole, the underground city had some thirty miles of streets and a population of five or six thousand. In this present day some of those populations are at work from twelve to sixteen hundred feet under Virginia and Gold Hill, and the signal-bells that tell them what the superintendent above-ground desires them to do are struck by telegraph as we strike a fire-alarm. Sometimes men fall down a shaft, there, a thousand feet deep. In such cases, the usual plan is to hold an inquest.

If you wish to visit one of those mines, you may walk through a tunnel about half a mile long if you prefer it, or you may take the quicker plan of shooting like a dart down a shaft, on a small platform. It is like tumbling down through an empty steeple, feet first. When you reach the bottom, you take a candle and tramp through drifts and tunnels where throngs of men are digging and blasting; you watch them send up tubs full of great lumps of stone - silver ore; you select choice specimens from the mass, as souvenirs; you admire the world of skeleton timbering; you reflect frequently that you are buried under a mountain, a thousand feet below daylight; being in the bottom of the mine you climb from "gallery" to "gallery," up endless ladders that stand straight up and down; when your legs fail you at last, you lie down in a small box-car in a cramped "incline" like a half up-ended sewer and are dragged up to daylight feeling as if you are crawling through a coffin that has no end to it. Arrived at the top, you find a busy crowd of men receiving the ascending cars and tubs and dumping the ore from an elevation into long rows of bins capable of holding half a dozen tons each; under the bins are rows of wagons loading from chutes and trap-doors in the bins, and down the long street is a procession of these wagons wending toward the silver-mills with their rich freight. It is all "done," now, and there you are. You need never go down again, for you have seen it all. If you have forgotten the process of reducing the ore in the mill and making the silver bars, you can go back and find it again in my Esmeralda chapters, if so disposed.

Of course these mines cave in, in places, occasionally, and then it is worth one's while to take the risk of descending into them and observing the crushing power exerted by the pressing weight of a settling mountain. I published such an experience in the Enterprise, once, and from it I will take an extract:

An Hour in the Caved Mines. - We journeyed down into the Ophir mine, yesterday, to see the earthquake. We could not go down the deep incline, because it still has a propensity to cave in places. Therefore we traveled through the long tunnel which enters the hill above the Ophir office, and then by means of a series of long ladders, climbed away down from the first to the fourth gallery. Traversing a drift, we came to the Spanish line, passed five sets of timbers still uninjured, and found the earthquake. Here was as complete a chaos as ever was seen - vast masses of earth and splintered and broken timbers piled confusedly together, with scarcely an aperture left large enough for a cat to creep through. Rubbish was still falling at intervals from above, and one timber which had braced others earlier in the day, was now crushed down out of its former position, showing that the caving and settling of the tremendous mass was still going on. We were in that portion of the Ophir known as the "north mines." Returning to the surface, we entered a tunnel leading into the Central, for the purpose of getting into the main Ophir. Descending a long incline in this tunnel, we traversed a drift or so, and then went down a deep shaft from whence we proceeded into the fifth gallery of the Ophir. From a side-drift we crawled through a small hole and got into the midst of the earthquake again - earth and broken timbers mingled together without regard to grace or symmetry. A large portion of the second, third, and fourth galleries had caved in and gone to destruction - the two latter at seven o'clock on the previous evening.

At the turn-table, near the northern extremity of the fifth gallery, two big piles of rubbish had forced their way through from the fifth gallery, and from the looks of the timbers, more was about to come. These beams are solid - eighteen inches square; first, a great beam is laid on the floor, then upright ones, five feet high, stand on it, supporting another horizontal beam, and so on, square above square, like the framework of a window. The superincumbent weight was sufficient to mash the ends of those great upright beams fairly into the solid wood of the horizontal ones three inches, compressing and bending the upright beam till it curved like a bow. Before the Spanish caved in, some of their twelve-inch horizontal timbers were compressed in this way until they were only five inches thick! Imagine the power it must take to squeeze a solid log together in that way. Here, also, was a range of timbers, for a distance of twenty feet, tilted six inches out of the perpendicular by the weight resting upon them from the caved galleries above. You could hear things cracking and giving way, and it was not pleasant to know that the world overhead was slowly and silently sinking down upon you. The men down in the mine do not mind it, however.

Returning along the fifth gallery, we struck the safe part of the Ophir incline, and went down it to the sixth; but we found ten inches of water there, and had to come back. In repairing the damage done to the incline, the pump had to be stopped for two hours, and in the mean time the water gained about a foot. However, the pump was at work again, and the flood-water was decreasing. We climbed up to the fifth gallery again and sought a deep shaft whereby we might descend to another part of the sixth, out of reach of the water, but suffered disappointment, as the men had gone to dinner, and there was no one to man the windlass. So, having seen the earthquake, we climbed out at the Union incline and tunnel, and adjourned, all dripping with candle-grease and perspiration, to lunch at the Ophir office.

During the great flush year of 1863, Nevada [claims to have] produced $25,000,000 in bullion - almost, if not quite, a round million to each thousand inhabitants, which is very well, considering that she was without agriculture and manufactures. Silver mining was her sole productive industry.

[Footnote 1: Since the above was in type, I learn from an official source that the above figure is too high, and that the yield for 1863 did not exceed $20,000,000. However, the day for large figures is approaching; the Sutro Tunnel is to plow through the Comstock lode from end to end, at a depth of two thousand feet, and then mining will be easy and comparatively inexpensive; and the momentous matters of drainage and hoisting and hauling of ore will cease to be burdensome. This vast work will absorb many years, and millions of dollars, in its completion; but it will early yield money, for that desirable epoch will begin as soon as it strikes the first end of the vein. The tunnel will be some eight miles long, and will develop astonishing riches. Cars will carry the ore through the tunnel and dump it in the mills, and thus do away with the present costly system of double handling and transportation by mule-teams. The water from the tunnel will furnish the motive power for the mills. Mr. Sutro, the originator of this prodigious enterprise, is one of the few men in the world who is gifted with the pluck and perseverance necessary to follow up and hound such an undertaking to its completion. He has converted several obstinate Congresses to a deserved friendliness toward his important work, and has gone up and down and to and fro in Europe until he has enlisted a great moneyed interest in it there.]
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Twain's comments on the Sutro tunnel are interesting, although it was completed mostly as planned, it never yielded the wealth it was supposed to. The mines fought with the Sutro company and by the time it was completed, they were mostly working levels deeper than the Sutro tunnel reached. Boom days were renewed in the 1870s, but it was due to the fantastic bonanza find in the hanging wall deposits of the Consolidated Virginia and California Mines.

Mark Twain’s stories about his experiences prospecting in the west, including many more humorous tales of his adventures can be found in his book: ROUGHING IT

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