This afternoon we crossed the vide that divides the waters of the Great Basin from those of the Pacific. This we know from the fact that we crossed a branch of the Pont Neuf River. At night we encamped by the Pont Neuf. It is from ten to fifteen yards wide, and deep. We saw some Snake Indians today. They have plenty of horses, which they offer to sell. The country before us appears very mountainous. I must cut today's note short, as it takes both hands to keep off the mosquitoes. Confound the mosquitoes! Distance, twenty miles. JUNE 27. Today our road led over very mountainous country. We crossed two high mountain ranges, with a fine stream of water between them. In advance of us our path was filled up with mountains, one upon another. Snow to be seen. There are two classes of mountains in this region, the largest covered with snow and the smaller one having vegetation and filling up the space between the others. Upon the peaks of some of the highest mountains is a stunted growth of cedar, which gives them rather a dark appearance. I have often heard when at home that buffalo did not abound west of the south pass, but I have seen numerous evidences in the shape of skulls by the road; but it is said by the Indians that there are not at this time any buffalo in this region, nor has there been for six years past. A sufficient cause for their entire disappearance in this region I cannot fully understand. Distance, sixteen miles. JUNE 28. Most excellent road today, and down hill all the way, except a circuitous narrow gorge in the mountains of about four miles in length, which we went through in the afternoon. In descending the western slope of this range we found the road very steep, though we came down in safety. At the soda springs we saw an old man who called himself Captain Grant. He assured us that one half of our cattle would die on the cut-off, for want of grass, and also that the road was almost impassible and no nearer than that by Fort Hall. This statement in respect to grass is utterly untrue, and we suspect the others are of like character. Grass on the cut-off is first rate--better than we have before seen on the road. Wild flax abounds in this region, though not in abundance. It is now in full bloom and looks quite like a flower garden in some places. We stopped by a little stream at noon, beyond which water is not so plenty for about twenty miles. There are willows growing along this stream. The road turns south after we cross it. We laid here until three o'clock and then went on about eight miles, passing over a range of low mountains, and encamped at night in the valley. A shower of rain in the afternoon. Distance, twenty miles. JUNE 29.