July 22, 1863: Near Long Barn
[Today] we raised camp and came on near thirty miles. We left the valley, climbed a high hill, and then struck across a barren country—fine trees, but nothing else—no grass. We had some fine views and passed some camps of men at work on the road. A road is now in course of construction near the line of this trail—a great work—men are now at work on the heaviest part. Our measurements were looked for with great interest.
We descended the long western slope by following down ridges, a part of the time on table mountains or ancient streams of lava, a part of the time in valleys—at last we camped where there was water, but scarcely anything for the animals to eat. We did not have a pleasant camp, and getting into a hotter climate, I did not feel well. John complained, and Hoffmann looked and felt as if on the eve of a severe sickness.