Imagine mighty green fields splattered with lime beds: all the flowers of the summer growing up to the very edge of the lime. That was the first glimpse of the geyser basins. The buggy had pulled up close to a rough, broken, blistered cone of stuff between ten and twenty feet high. There was trouble in that place—moaning, splashing, gurgling, and the clank of machinery. A spurt of boiling water jumped into the air and a wash of water followed. I removed swiftly. The old lady from Chicago shrieked. “What a wicked waste!” said her husband. I think they call it the Riverside Geyser. Its spout was torn and ragged like the mouth of a gun when a shell has burst there. It grumbled madly for a moment or two and then was still. I crept over the steaming lime—it was the burning marl on which Satan lay—and looked fearfully down its mouth. You should never look a gift geyser in the mouth. I beheld a horrible slippery, slimy funnel with water rising and falling ten feet at a time. Then the water rose to lip level with a rush and an infernal bubbling troubled this Devil’s Bethesda before the sullen heave of the crest of a wave lapped over the edge and made me run. Mark the nature of the human soul! I had begun with awe, not to say terror. I stepped back from the flanks of the Riverside Geyser saying: “Pooh! Is that all it can do?” Yet for aught I knew the whole thing might have blown up at a minute’s notice; she, he, or it, being an arrangement of uncertain temper.

We drifted on up that miraculous valley. On either side of us were hills from a thousand to fifteen feet high and wooded from heel to crest. As far as the eye could range forward were columns of steam in the air, misshapen lumps of lime, most like preadamite monsters, still pools of turquoise blue, stretches of blue cornflowers, a river that coiled on itself twenty times, boulders of strange colours, and ridges of glaring, staring white.

The old lady from Chicago poked with her parasol at the pools as though they had been alive. On one particularly innocent-looking little puddle she turned her back for a moment, and there rose behind her a twenty-foot column of water and steam. Then she shrieked and protested that “she never thought it would ha’ done it,” and the old man chewed his tobacco steadily, and mourned for steam power wasted. I embraced the whitened stump of a middle-sized pine that had grown all too close to a hot pool’s lip, and the whole thing turned over under my hand as a tree would do in a nightmare. From right and left came the trumpetings of elephants at play. I stepped into a pool of old dried blood rimmed with the nodding cornflowers; the blood changed to ink even as I trod; and ink and blood were washed away in a spurt of boiling sulphurous water spat out from the lee of a bank of flowers. This sounds mad, doesn’t it?...

We rounded a low spur of hills, and came out upon a field of aching snowy lime, rolled in sheets, twisted into knots, riven with rents and diamonds and stars, stretching for more than half a mile in every direction. In this place of despair lay most of the big geysers who know when there is trouble in Krakatoa, who tell the pines when there is a cyclone on the Atlantic seaboard, and who—are exhibited to visitors under pretty and fanciful names. The first mound that I encountered belonged to a goblin splashing in his tub. I heard him kick, pull a shower-bath on his shoulders, gasp, crack his joints, and rub himself down with a towel; then he let the water out of the bath, as a thoughtful man should, and it all sank down out of sight till another goblin arrived. Yet they called this place the Lioness and the Cubs. It lies not very far from the Lion, which is a sullen, roaring beast, and they say that when it is very active the other geysers presently follow suit. After the Krakatoa eruption all the geysers went mad together, spouting, spurting, and bellowing till men feared that they would rip up the whole field. Mysterious sympathies exist among them, and when the Giantess speaks (of her more anon) they all hold their peace.

I was watching a solitary spring, when, far across the fields, stood up a plume of spun glass, iridescent and superb against the sky. “That,” said the trooper, “is Old Faithful. He goes off every sixty-five minutes to the minute, plays for five minutes, and sends up a column of water a hundred and fifty feet high. By the time you have looked at all the other geysers he will be ready to play.”

So we looked and we wondered at the Beehive, whose mouth is built up exactly like a hive; at the Turban (which is not in the least like a turban); and at many, many other geysers, hot holes, and springs. Some of them rumbled, some hissed, some went off spasmodically, and others lay still in sheets of sapphire and beryl.

Would you believe that even these terrible creatures have to be guarded by troopers to prevent the irreverent American from chipping the cones to pieces, or worse still, making the geysers sick? If you take of soft-soap a small barrelful and drop it down a geyser’s mouth, that geyser will presently be forced to lay all before you and for days afterwards will be of an irritated and inconsistent stomach. When they told me the tale I was filled with sympathy. Now I wish that I had stolen soap and tried the experiment on some lonely little beast of a geyser in the woods. It sounds so probable—and so human.

Yet he would be a bold man who would administer emetics to the Giantess. She is flat-lipped, having no mouth, she looks like a pool, fifty feet long and thirty wide, and there is no ornamentation about her. At irregular intervals she speaks, and sends up a column of water over two hundred feet high to begin with; then she is angry for a day and a half—sometimes for two days. Owing to her peculiarity of going mad in the night not many people have seen the Giantess at her finest; but the clamour of her unrest, men say, shakes the wooden hotel, and echoes like thunder among the hills. When I saw her; trouble was brewing. The pool bubbled seriously, and at five-minute intervals, sank a foot or two, then rose, washed over the rim, and huge steam bubbles broke on the top. Just before an eruption the water entirely disappears from view. Whenever you see the water die down in a geyser-mouth get away as fast as you can. I saw a tiny little geyser suck in its breath in this way, and instinct made me retire while it hooted after me. Leaving the Giantess to swear, and spit, and thresh about, we went over to Old Faithful, who by reason of his faithfulness has benches close to him whence you may comfortably watch. At the appointed hour we heard the water flying up and down the mouth with the sob of waves in a cave. Then came the preliminary gouts, then a roar and a rush, and that glittering column of diamonds rose, quivered, stood still for a minute; then it broke, and the rest was a confused snarl of water not thirty feet high. All the young ladies—not more than twenty—in the tourist band remarked that it was “elegant,” and betook themselves to writing their names in the bottoms of shallow pools. Nature fixes the insult indelibly, and the after-years will learn that “Hattie,” “Sadie,” “Mamie,” “Sophie,” and so forth, have taken out their hair-pins, and scrawled in the face of Old Faithful....

Next morning Tom drove us on, promising new wonders. He pulled up after a few miles at a clump of brushwood where an army was drowning. I could hear the sick gasps and thumps of the men going under, but when I broke through the brushwood the hosts had fled, and there were only pools of pink, black, and white lime, thick as turbid honey. They shot up a pat of mud every minute or two, choking in the effort. It was an uncanny sight. Do you wonder that in the old days the Indians were careful to avoid the Yellowstone? Geysers are permissible, but mud is terrifying. The old lady from Chicago took a piece of it, and in half an hour it died into lime-dust and blew away between her fingers. All maya—illusion,—you see! Then we clinked over sulphur in crystals; there was a waterfall of boiling water; and a road across a level park hotly contested by the beavers....

As we climbed the long path the road grew viler and viler till it became without disguise, the bed of a torrent; and just when things were at their rockiest we emerged into a little sapphire lake—but never sapphire was so blue—called Mary’s lake; and that between eight and nine thousand feet above the sea. Then came grass downs, all on a vehement slope, so that the buggy following the new-made road ran on to the two off-wheels mostly, till we dipped head-first into a ford, climbed up a cliff, raced along a down, dipped again and pulled up dishevelled at “Larry’s” for lunch and an hour’s rest....