Idaho, for much of the journey, was dry, then the crossing of the Snake were always fraught with hazard. The section from Farewell Bend to Baker City was rocky, steep, and very dry. Once in the Powder River and Grande Ronde Valleys, the Indians would trade them potatoes, many kinds of vegitables, squash, and wild game for cloth and metal. They would also trade a fresh oxen for two worn out ones. And trade those the next year after fattening them up. They also had beef and horses to trade. Not at all the picture that the movies paint of the Native Americans. Very good museum at Baker City featuring facts and item from the Trail.
That's good to know. Next time I am up that way I will check it out. Thanks for the heads up.