The captains had assumed that when they got out of the mountains they would be in a country with an ample supply of deer and elk. They were wrong. The hunters – those still on their feet – were unsuccessful. Fish and roots purchased from the Nez Perce remained the diet. On October 4, Lewis was still sick. The next day, Clark reported, “Capt Lewis & my Self eate a Supper of roots boiled, which filled us So full of wind, that we were Scercely able to Breathe all night felt the effects of it.”

Stephen Ambrose, Undaunted Courage (296)