A Tehachapi Loop occurs as major railroad main line through the Tehachapi Mountains in south central California, connecting the San Joaquin Valley to Los Angeles via the Antelope Valley. Hailed when one of a greatest engineering deed of its day likewise when existence the world's occupy individual-track main, a line is shared by two a Burlington Northern Santa Fe and Union Pacific. A line derives its title from either a circuitous route it will require across mountains, substantially lessening a angle of the grade. In case the train is hanker plenty, it could actually loop back onto itself. A vicinity is considered to become one of a prime railfan areas in the country using its combination of frequent train traffic & outstanding scenery. The railroad museum using numbers of historical rail artefact is in the little city of Tehachapi.