Saturday, September 3.—This morning General Washburn and I left camp immediately after breakfast and returned four miles on our track of September 1st to Crater Hill and the mud springs, for the purpose of making farther examinations. We found the sulphur boiling spring to be full to overflowing, the water running down the inclined surface of the crust in two different directions. It was also boiling with greater force than it was when we first saw it, the water being occasionally thrown up to the height of ten feet. About 80 or 100 yards from this spring we found what we had not before discovered, a boiling spring of tartaric acid in solution, with deposits around the edge of the spring, of which we gathered a considerable quantity. In the basin where we had found so many mud springs we to-day found a hot boiling spring containing a substance of deep yellow color, the precise nature of which we could not readily ascertain. We accordingly brought away some of it in a bottle (as is our usual custom in such cases of uncertainty), and we will have an analysis of it made on our return home. In the same basin we also found some specimens of black lava.
A half mile south of these springs we found an alum spring yielding but little water and surrounded with beautiful alum crystals. From its border we obtained a great many curiously shaped deposits of alum slightly impregnated with iron. The border of this spring below the surface had been undermined in many places by the violent boiling of the water, to the distance of several feet from the margin, so that it was unsafe to stand near the edge of the spring. This, however, I did not at first perceive; and, as I was unconcernedly passing by the spring, my weight made the border suddenly slough off beneath my feet. General Washburn noticed the sudden cracking of the incrustation before I did, and I was aroused to a sense of my peril by his shout of alarm, and had sufficient presence of mind to fall suddenly backwards at full length upon the sound crust, whence, with my feet and legs extended over the spring, I rolled to a place of safety. But for General Washburn’s shout of alarm, in another instant I would have been precipitated into this boiling pool of alum. We endeavored to sound the depth of this spring with a pole twenty-five feet long, but we found no bottom.
Everything around us—air, earth, water—is impregnated with sulphur. We feel it in every drop of water we drink, and in every breath of air we inhale. Our silver watches have turned to the color of poor brass, tarnished.
General Washburn and I again visited the mud vulcano to-day. I especially desired to see it again for the one especial purpose, among others of a general nature, of assuring myself that the notes made in my diary a few days ago are not exaggerated. No! they are not! The sensations inspired in me to-day, on again witnessing its convulsions, and the dense clouds of vapor expelled in rapid succession from its crater, amid the jarring of the earth, and the ominous intonations from beneath, were those of mingled dread and wonder. At war with all former experience it was so novel, so unnaturally natural, that I feel while now writing and thinking of it, as if my own senses might have deceived me with a mere figment of the imagination. But it is not so. The wonder, than which this continent, teeming with nature’s grandest exhibitions, contains nothing more marvelous, still stands amid the solitary fastnesses of the Yellowstone, to excite the astonishment of the thousands who in coming years shall visit that remarkable locality.1
Returning to the camp we had left in the morning, we found the train had crossed the river, and we forded at the same place, visiting, however, on our way another large cauldron of boiling mud lying nearly opposite our camp. Soon after fording the river we discovered some evidence that trappers had long ago visited this region. Here we found that the earth had been thrown up two feet high, presenting an angle to the river, quite ingeniously concealed by willows, and forming a sort of rifle-pit, from which a hunter without disclosing his hiding place could bring down swans, geese, ducks, pelicans, and even the furred animals that made their homes along the river bank.
We followed the trail of the advance party along the bank of the river, and most of the way through a dense forest of pine timber and over a broad swampy lowland, when we came into their camp on the Yellowstone lake two miles from where it empties into the river, and about ten miles from our morning camp. We passed Brimstone basin on our left, and saw jets of steam rising from the hills back of it. From all appearances the Yellowstone can be forded at almost any point between the rapids just above the upper fall and the lake, unless there are quicksands and crevices which must be avoided.
Yellowstone lake, as seen from our camp to-night, seems to me to be the most beautiful body of water in the world. In front of our camp it has a wide sandy beach like that of the ocean, which extends for miles and as far as the eye can reach, save that occasionally there is to be found a sharp projection of rocks. The overlooking bench rises from the water’s edge about eight feet, forming a bank of sand or natural levee, which serves to prevent the overflow of the land adjoining, which, when the lake is receiving the water from the mountain streams that empty into it while the snows are melting, is several feet below the surface of the lake. On the shore of the lake, within three or four miles of our camp, are to be found specimens of sandstone, resembling clay, of sizes varying from that of a walnut to a flour barrel, and of every odd shape imaginable. Fire and water have been at work here together—fire to throw out the deposit in a rough shape, and water to polish it. From our camp we can see several islands from five to ten miles distant in a direct line. Two of the three “Tetons,” which are so plainly visible to travelers going to Montana from Eagle Rock bridge on Snake river, and which are such well-known and prominent landmarks on that stage route, we notice to-night in the direction of south 25 degrees west from our camp. We shall be nearer to them on our journey around the lake.
1Dr. P.V. Hayden, geologist in charge of the U.S. Geological Survey, first visited this region in the summer of 1871--the year following the visit of the Washburn party, whose discoveries and explorations are recorded in this diary. Dr. Hayden, on his return, graphically described the various wonders which he saw, but had very little to say concerning the mud volcano. This fact was the more inexplicable to me for the reason that the Washburn party thought it one of the most remarkable curiosities to be found in that region, and I was greatly surprised to find that Dr. Hayden made so little allusion to it.
In 1872, the year following Dr. Hayden's first visit, I again visited the volcano, and the omission by Hayden was explained as soon as I saw the volcano in its changed condition. The loud detonations which resembled the discharges of a gun-boat mortar were no longer heard, and the upper part of the crater and cone had in a great measure disappeared, leaving a shapeless and unsightly hole much larger than the former crater, in which large tree-tops were swaying to and fro in the gurgling mass, forty feet below--the whole appearance bearing testimony to the terrible nature of the convulsion which wrought such destruction. Lieutenant Doane, in his official report to the War Department, thus describes the volcano as it appeared in 1870:
“A few hundred yards from here is an object of the greatest interest. On the slope of a small and steep wooded ravine is the crater of a mud volcano, 30 feet in diameter at the rim, which is elevated a few feet above the surface on the lower side, and bounded by the slope of the hill on the upper, converging, as it deepens, to the diameter of 15 feet at the lowest visible point, about 40 feet down. Heavy volumes of steam escape from this opening, ascending to the height of 300 feet. From far down in the earth came a jarring sound, in regular beats of five seconds, with a concussion that shook the ground at 200 yards' distance. After each concussion came a splash of mud, as if thrown to a great height; sometimes it could be seen from the edge of the crater, but none was entirely ejected while we were there. Occasionally an explosion was heard like the bursting of heavy guns behind an embankment, and causing the earth to tremble for a mile around. The distance to which this mud had been thrown is truly astonishing. The ground and falling trees near by were splashed at a horizontal distance of 200 feet. The trees below were either broken down or their branches festooned with dry mud, which appeared in the tops of the trees growing on the side hill from the same level with the crater, 50 feet in height, and at a distance of 180 feet from the volcano. The mud, to produce such effects, must have been thrown to a perpendicular elevation of at least 300 feet. It was with difficulty we could believe the evidence of our senses, and only after the most careful measurements could we realize the immensity of this wonderful phenomenon.”
The visitor to the Park who has read the description given by Washburn, Hedges, Doane or myself, of the mud volcano as it appeared in 1870, will readily perceive that it has undergone a great change since the time of its first discovery.
In my account of my trip made in 1872, published in Scribner's (now Century) Magazine for June, 1873, I say, concerning this change: “A large excavation remained; and a seething, bubbling mass of mud, with several tree-tops swaying to and fro in the midst, told how terrible and how effectual must have been the explosions which produced such devastation. I could not realize that in this unsightly hole I beheld all that was left of those physical wonders which filled this extraordinary region. * * * Great trees that then decorated the hillside were now completely submerged in the boiling mass that remained.”
The trees with their green tops, which were visible in 1872, have now entirely disappeared. Can any one conjecture what has become of them?
