WWyoming TerritoryWAlbany County, WyomingWCook–Folsom–Peterson ExpeditionWExpedition IslandWExpeditions and the protection of Yellowstone (1869–1890)WFort D. A. Russell (Wyoming)WFort FettermanWFort Laramie National Historic SiteWFort WashakieWHayden Geological Survey of 1871WJohnson County WarWPowell Geographic Expedition of 1869WRed Cloud AgencyWRock Springs massacreWTreaty of Fort Laramie (1868)WWashburn–Langford–Doane ExpeditionWEllen Watson