Three hundred yards below the crossing of this branch, and immediately on the bank of the river, is the Steamboat Spring.[59] The water has formed a small cone of about two and a half feet in height, and three feet in diameter, at the base. A hole of six inches in diameter at the top, allows the water to discharge itself. It swells out at intervals of eight or ten seconds, and sometimes flows four or five feet in disjointed fragments. It is lukewarm, and has a milky appearance; but when taken in a vessel becomes as transparent as crystal. It produces a sound similar to the puffing of a steamboat, but not quite so deep. It can frequently be heard at the distance of a quarter of a mile. About six feet from this is a small fissure in the rock, which is called the escape-pipe or gas-pipe. It makes a hissing noise, corresponding with the belching of the spring. The gas emitted from this fissure is so strong that it would suffocate a person, holding his head near the ground. To the rear of this, across the road, are mounds fifty or sixty feet in height; these were entirely dry. Up this creek is very good grazing for cattle, but there are found some marshy places contiguous. The bottom upon the opposite side of the river is four or five miles in width, and covered with a good coat of grass. The soil looks good; and if the seasons are not too {40} short, would produce well. The mountain upon the south side is covered with heavy pine timber; on the north side but little timber was observed; what little was noticed consisted principally of scrubby cedars. Antelope found in abundance. The water, in many of the springs, is sufficiently strong to raise bread, equally as well as saleratus or yeast. Were it not for their remote situation, these springs would be much resorted to, especially during the summer months. The country is mountainous, and its altitude so great, that the air is always cool, and consequently must be healthy.
Companies wishing to remain for a length of time at the springs, would pursue a proper course in driving their cattle over the river, as good grazing can thereby be had.
August 5. We traveled about nineteen miles. Five miles brought us to where the road leaves the river, and bears northward through a valley. The river bears to the southward and empties its waters into Big Salt Lake.[60] The range of mountains bounding the north side of the river here comes to within a half mile of it, then bears off to the north, leaving a valley of about seven or eight miles in width between it and a range coming from Lewis river, and extending south towards Salt Lake. The range bounding the south side of the river comes abruptly to the stream at this point, presenting huge and cumbrous masses of basaltic rock, but it is generally covered with heavy timber. At this point two trails are found: one striking west, across the valley, to the opposite side; the other, which is the nearest and best, follows around the point, hugging the base of the mountain for several miles. Two and one half miles distant, and immediately beneath a cliff of rocks by the road side, is to be found a soda pool. A little spring of cool soda water runs out at the base of the rock, and a basin of eight or ten yards in extent, and about two and one half feet high has been formed. Inside of this, is a pool of water;—the material composing the bank around, is of a white color. In a few miles travel, we crossed several spring branches. We then directed our course through the plain for some eight or nine miles, to where we encamped. Our camp was located near a spring branch; but a small quantity of wood was found; grazing was excellent. From where the road leaves the river, the country presents every appearance of having been volcanic at some period. Craters are yet standing in the plain, exhibiting positive evidence of this fact. A large mound has been formed by the lava ejected from this crater. In the centre is {41} a deep cavity; now partially filled, from the falling in of the masses of bank surrounding it. In every direction the eye rests upon fragments of rock, which have been thrown out in a hot and burning condition, many of them melted and united; pieces resembling broken junk bottles or black glass lay scattered over the plain. The valley for ten or twelve miles is covered with stone of this description. In many places the rocks have been lifted or bulged up to an elevation of ten or fifteen feet, the top has been burst asunder, presenting a cavity of eight or ten feet in width, caused by the fragments having been cast out; the depth of the cavity is from twenty to thirty feet, the sides have a black appearance, and exhibit indications of having been burned; at other places the rock had been lifted up, and elevated above the surface of the earth some five or six feet, and about the same in width, having numerous small apertures in it, the centre being concave. The stone forms a complete arch. At other places the rock has been rent, and a chasm of thirty or forty feet in depth and from two to ten feet in width, has been the result. These chasms are about one quarter of a mile in length. The fragments lay in every direction.
The country over this plain is rather barren; but at certain seasons of the year, is covered with grass, which during the summer months dies, leaving but little appearance of vegetation. After we had halted for the night, three families who had separated from our company at the Soda Springs, passed us. A few hours had elapsed, and we espied one of their number returning post haste to our camp. When he arrived, he was so paralysed with fear, that it was with difficulty we obtained from him the cause of his alarm. It appeared evident, from his statement, that a party of Snake Indians meditated an attack upon their party. We dispatched a company to their relief, but soon had the gratification to witness the return of their wagons to our camp. It appears that one of their number had marched about two miles in advance of the wagons, when he was discovered by a party of Snake Indians, lurking in the vicinity, who immediately gave him chase, at every step uttering the most terrific yells, and endeavoured to surround him; but as he was astride a fleet American courser, he succeeded in outstripping them, and arrived at the wagons in time to prepare for their approach. The wagons were then in a deep ravine, and could not be seen, by the Indians in pursuit, until within seventy-five yards. As soon as the Indians discovered {42} their proximity to the wagons they commenced a precipitate retreat, and the emigrants rejoined our party.
August 6. We traveled this day about fifteen miles. The road for seven miles is up the valley; it then takes over the mountain, to the waters running into Snake or Lewis river. The high range of mountains which bears off towards Salt Lake, terminates near the road on the left. The road follows a ravine, and winds about among the hills, and thickets of quaking aspen, until it reaches a spring branch, down which it follows, to near Fort Hall. Over the ridge, and for two miles down the branch, there is but little grass found. At the distance of three miles, on our left up the mountain, were several patches of snow. A few of our party brought some of the snow to our camp.
August 7. This day we made about eighteen miles. For ten miles the road is very good. Along the stream is found willow brush, answering for fuel. The last seven miles is over a sandy plain; it was dry, and very heavy traveling. Our camp was at a large spring of cold water; grazing was very good.
August 8. We traveled but five miles, which brought us to Fort Hall.[61] This is a trading post in the possession of the Hudson's Bay Company. Like the forts on the east side of the mountains, it is built of mud or adobes. (This term applies to sun-burnt brick.) They are of a similar construction. At each corner is a bastion, projecting out some eight or ten feet, perforated with holes for fire-arms. Captain Grant is now the officer in command; he has the bearing of a gentleman.[62] The garrison was supplied with flour, which had been procured from the settlements in Oregon, and brought here on pack horses. They sold it to the emigrants for twenty dollars per cwt., taking cattle in exchange; and as many of the emigrants were nearly out of flour, and had a few lame cattle, a brisk trade was carried on between them and the inhabitants of the fort. In the exchange of cattle for flour, an allowance was made of from five to twelve dollars per head. They also had horses which they readily exchanged for cattle or sold for cash. The price demanded for horses was from fifteen to twenty-five dollars. They could not be prevailed upon to receive anything in exchange for their goods or provisions, excepting cattle or money.
The bottoms here are wide, and covered with grass. There is an abundance of wood for fuel, fencing, and other purposes. {43} No attempt has, as yet, been made to cultivate the soil. I think the drought too great; but if irrigation were resorted to, I doubt not it would produce some kinds of grain, such as wheat, corn, potatoes, &c.