On Sunday, May 26th, Captain Lewis left camp on foot, ascended to the summit of a ridge of hills near the river, and from the height had his first glimpse of the distant ranges of the Rocky Mountains. This was about a year and a half before Pike's discovery. The journal entry for that day comes near to showing emotion:-- "While I viewed these mountains I felt a secret pleasure in thus finding myself so near the head of the hitherto conceived boundless Missouri; but when I reflected on the difficulties which this snowey barrier would most probably throw in my way to the Pacific, and the sufferings and hardships of myself and party in them, it in some measure counterballanced the joy I had felt in the first moments in which I gazed on them; but as I have always held it a crime to anticipate evils I will believe it a good comfortable road until I am compelled to believe differently." Progress grew increasingly hard. Rapids were numerous, over which the boats could not be urged with oars; so the men were compelled to walk upon the banks, drawing the craft with tow-lines. These lines were made mostly of elk-skin, which became softened and rotted by the water and often broke under the strain, causing many accidents of a trying and serious nature. The banks were sometimes so rocky and precipitous as to afford no foothold; then the men took to the water, wading, swimming, making headway as they could. One extract from the journals will illustrate the severity of their toil:-- "May 31st [a rainy day]. Obstructions continue, and fatigue the men excessively. The banks are so slippery in some places, and the mud so adhesive, that they are unable to wear their moccasins; one fourth of the time they are obliged to be up to their arm-pits in the cold water, and sometimes they walk for several hours over the sharp fragments of rocks which have fallen from the hills. All this, added to the burden of dragging the heavy canoes, is very painful; yet the men bear it with great patience and good humour." On June 3d they came to a point where the river forked; and here, as the forks were of nearly equal volume, they were in doubt as to their route. Captain Lewis wrote:--