 Nyora kupfuurira kweiyi ndima - Kuongorora kwokutanga kweNorthwest Territory naLewis naClarkharina kusvika kure kuchamhembe seLincoln County expanses. Chinyorwa chokutanga chakanyorwa nevatsvakurudzi vokuEurope chaiva chaDavid Thompson, musori weNorth West Company, uyo akapfuura nomunharaunda yacho muna 1811. Akanyora nzvimbo dziri muLincoln County yemazuva ano. Akarondedzera Hell Gate Rapid achidana kuti Strong Rapid. Chikamu ichocho choRwizi rweColumbia zvino chakapfava, nemhaka yokuvapo kweDhamu reGrand Coulee. Pashure paikoku, kwakanga kune kunzvera kukuru kwakaitwa navatsvaki vematehwe navamwe, kubatanidza nyanzvi yezvirimwa yakakurumbira yeScotland David Douglas muna 1826. 