Lemhi Pass is where the expedition first crossed the Continental Divide. August 12, 1805. Lewis: at the distance of 4 miles further the road took us to the most distant fountain of the waters of the Mighty Missouri in surch of which we have spent so many toilsome days and wristless nights. thus far I had accomplished one of those great objects on which my mind has been unalterably fixed for many years, judge then of the pleasure I felt in all[a]ying my thirst with this pure and ice-cold water which issues from the base of a low mountain or hill of a gentle ascent for 1/2 a mile. Photo courtesy Ralph Maughan.

More about the food of the Lemhi Mountains August 15, 1805. Lewis: This morning I arrose very early and as hungary as a wolf. I had eat nothing yesterday except one scant meal of the flour and berries except the dryed cakes of berries which did not appear to satisfy my appetite as they appeared to do those of my Indian friends. I found on enquiry of McNeal that we had only about two pounds of flour remaining. This I directed him to divide into two equal parts and to cook the one half this morning in a kind of pudding with the burries as he had done yesterday and reserve the ballance for the evening. on this new fashoned pudding four of us breakfasted, giving a pretty good allowance also to the Chief who declared it the best thing he had taisted for a long time.

Find out more: Sierra Club in Idaho Rivers of Lewis and Clark Lewis and Clark in Idaho Kettle Range Conservation Group Sierra Magazine: Lewis and Clark