He climbs over a mountain spur and sees spread before him a white plateau of several hundred acres. Jets of steam are pouring from a thousand points of its surface, some rising only a few feet, others lifting 500 feet into the air; here from fountains boiling merely, or spouting up to one, two, or more feet; there from simple vent holes in the nearly level surface of the plain. Some pour from fantastic forms—great stumps of trees with one side torn away; from piles of downy cushions; from great platters of biscuit, a part as white as dough, others crisp and brown; from ruined castles; from orifices bordered by mighty, parted, Ethiopian lips of whitish gray tone or painted red and brown. One is fashioned like an old time conical straw bee-hive. So well is the model copied, that no great stretch of imagination would be required to enable one to hear the buzz of busy honey makers swarming about it. Another is a rude cabin chimney with steam lifting from its top, in lieu of smoke curling from a woodman's fire.
He approaches one which might once have been a grotto, with stalagmites and stalactites forming its ribs and roof, but the superincumbent earth having been removed, the stony skeleton is laid bare, partly a dozen or more feet above the ground and partly sunken below. From its hollow pit comes a roaring sound not unlike the growl of a lion when feeding, only of a king of beasts many fold enlarged. He hears close by it a noise he takes to be the call of a familiar bird. There is no bird in sight, but near his feet in the rocky platform is a small vent he could close with his thumb; it is breathing, but its breath is high heated steam; its inspiration is a gentle gurgle, its expiration is the blue jay's call.
Its breath comes from deep below, from the lungs of the monster whose stertorous breathing is an indication that he is turning over in his hidden lair; and as he turns he belches forth a mouthful of steam and water through the grotto. He has evidently eaten something disagreeable and is sick in the regions of the maw, for up comes another and a larger mouthful; and then another and more, until he pours out his very insides in tons of boiling water. Through every opening of the grotto's frame, water and steam rush forth in mighty volume. Thousands of gallons to the minute lift in jets ten to thirty feet through each opening, and run in great streams to the crystal river a little way below. The monster bellows, the vents about the grotto's base whistle, the water splashes, and the steam rushes, scalding hot. After a while—perhaps in twenty or thirty minutes—all flowing ceases, and a column of steam pours out for perhaps an hour and lifts several hundred feet into the air.
"THE GIANT" IN ACTION.
While this strange action is being seen, close by, a rumbling noise is heard in the depths of "The Giant," 200 or 300 yards away. The noise increases, not unlike that of an approaching railroad train, and is soon accompanied by a discharge of water three or more feet in diameter at the geyser nozzle, lifted in an almost vertical column 150 to 200 feet high, all enveloped in a veil of steam. This pours through the top of a geyserite formation some ten feet high, and a dozen or fifteen from out to out—a monster stump, broken and jagged as if a monarch of the forest had been snapped off by a mighty storm blast.
THE GIANT, AT UPPER GEYSER BASIN. (SEE PAGE 33.)
The flood drops all about in spray, veiling the lifted column, and is of such quantity that the river nearly seventy-five feet wide, is doubled in depth when the monster is in action.
Our accidental red tourist has lost his Indian stoicism, and wishes to see something more of the Devil's doings. The "Giant" having become silent, he steals along the white formation a few hundred yards, when, from a small hole in the ground, without any warning, up shoots a beautiful little geyser about twenty feet high, a perfect spreading jet d'eau, accompanied by no steam and lasting only perhaps a quarter of a minute. The action of this little jet over, every drop of its lifted water flows back into its mouth and disappears down its throat; but not for long, for it again shoots up in four minutes, and is so regular in its action, that it has been christened "Young Faithful."
The plateau here spoken of—"The upper geyser basin"—is two or more miles long and of irregular width, probably averaging a third of a mile. It is all white with encrusted geyserite deposit often giving out a hollow sound to the tread. This deposit varies in thickness from a few inches to several feet. It is grayish white, resembling tarnished frozen snow.