On the plain here I noticed blackbirds and grouse. In about seven miles from Clear creek, the trail brought us to a place at the foot of the mountain where there issued, with considerable force, 10 or 12 hot springs, highly impregnated with salt. In one of these the thermometer stood at 136°, and in another at 132.5°, and the water, which was spread in pools over the low ground, was colored red.
An analysis of the red earthy matter deposited in the bed of the stream from the springs, gives the following result:
Peroxide of iron------- 33.50 Carbonate of magnesia-- 2.40 Carbonate of lime------ 50.43 Sulphate of lime------- 2.00 Chloride of sodium----- 3.45 Silica and alumina------ 3.00 Water and loss---------- 5.22 ------ 100.00°
At this place the trail we had been following turned to the left, apparently with a view of entering a gorge in the mountain, from which issued the principal fork of a large and comparatively well-timbered stream, called Weber's fork. We accordingly turned off towards the lake, and encamped on this river, which was 100 to 150 feet wide, with high banks, and very clear pure water, without the slightest indication of salt.
6th.--Leaving the encampment early, we again directed our course for the peninsular _butte_ across a low shrubby plain, crossing in the way a slough-like creek with miry banks, and wooded with thickets of thorn, (_crataegus_,) which were loaded with berries. This time we reached the butte without any difficulty, and, ascending to the summit, immediately at our feet beheld the object of our anxious search--the waters of the Inland Sea, stretching in still and solitary grandeur far beyond the limit of our vision. It was one of the great points of the exploration; and as we looked eagerly over the lake in the first emotions of excited pleasure, I am doubtful if the followers of Balboa felt more enthusiasm when, from the heights of the Andes, they saw for the first time the great Western ocean. It was certainly a magnificent object, and a noble _terminus_ to this part of our expedition; and to travelers so long shut up among mountain ranges, a sudden view over the expanse of silent waters had in it something sublime. Several large islands raised their high rocky heads out of the waves; but whether or not they were timbered, was still left to our imagination, as the distance was too great to determine if the dark hues upon them were woodland or naked rock. During the day the clouds had been gathering black over the mountains to the westward, and, while we were looking, a storm burst down with sudden fury upon the lake, and entirely hid the inlands from our view. So far as we could see, along the shores there was not a solitary tree, and but little appearance of grass; and on Weber's fork, a few miles below our last encampment, the timber was gathered into groves, and then disappeared entirely. As this appeared to be the nearest point to the lake, where a suitable camp could be found, we directed our course to one of the groves, where we found a handsome encampment, with good grass and an abundance of rushes, (_equisetum hyemale_.) At sunset the thermometer was at 55°; the evening clear and calm, with some cumuli.