1868, BUILD, BUILDING, BW, CENTURY, CONSTRUCT, CONSTRUCTING, CONSTRUCTION, CREW, HISTORIC, HISTORICAL, HISTORY, IMAGE, IN, LABORER, LANDSCAPE, LARAMIE, LAYING, MAN, MEN, NEAR, NINTEENTH, OMIKRON, PACIFIC, PEOPLE, RAILHEAD, RAILROAD, RAILWAY, SHOWS, THIS, TRACK, TRACKLAYING, TRACKS, TRAIN, TRANSCONTINENTAL, TRANSPORT, TRANSPORTATION, UNION, WEST, WESTERN, WORK, WORKERS, WYOMING,