 In the 1860s and 1870s , the city became a major outfitting center for the major trails that went across Nebraska , including the Oregon , California and Mormon Trails . <unk> Canyon was built in Downtown Omaha for the purpose of outfitting these migrants . <unk> lines had arrived by 1858 , including the Local Stage Coach Company in 1857 , and the Western Stage Company which began its easterly and <unk> routes in Omaha . The Pony Express and Wells <unk> lines maintained offices in the city . 
