Journal of an Exploring Tour Beyond the Rocky Mountains : Under the Direction of the A.B.C.F.M., Perf

Under The Direction Of The American Board Of Commissions For Foreign Missions, In The Years 1835, '36, And '37; Containing A Description Of The Geography, Geology, Climate, Productions Of The Country, And The Number, Manners, And Customs Of The Natives; With A Map Of Oregon Territory.