WCook–Folsom–Peterson ExpeditionWGeological Exploration of the Fortieth ParallelWGreat Northern ExpeditionWHarriman Alaska expeditionWHayden Geological Survey of 1871WLady Franklin Bay ExpeditionWBibliography of the Lewis and Clark ExpeditionWLewis and Clark ExpeditionWMackenzie River expeditionWPalliser expeditionWPike ExpeditionWPowell Geographic Expedition of 1869WRaynolds ExpeditionWSpanish expeditions to the Pacific NorthwestWWashburn–Langford–Doane ExpeditionWWheeler SurveyWYellowstone expedition
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