William Clark, The Journals of Lewis and Clark…
“ I am still apprehensive that the snow and the want of food for our horses will prove a serious imbarrassment to us as at least four days journey of our rout in these mountains lies over hights and along a ledge of mountains never intirely destitute of snow. every body seems anxious to be in motion, convinced that we have not now any time to delay if the calculation is to reach the United States this season ”
