Complex sentence: The group traveled by rail to the end of the line at Las Vegas, New Mexico, then on to Zuni Pueblo where Cushing, "went native", living with the Zuni from 1879 to 1884, becoming anthropology's first participant observer.
Split into simpler sentences: The group traveled by rail to the end of the line at Las Vegas, New Mexico, then on to Zuni Pueblo. Cushing "went native", living with the Zuni from 1879 to 1884, and becoming anthropology's first participant observer.