BNSF 6796 dodges shadows on the climb out of Caliente. Code line and Searchlight signals, a staple of Tehachapi since the days of steam, will soon succumb to technology and be scribed into the pages of history.
Photos showing the railroad pole lines. The pole line used four basic electrical circuits - telegraph, telephone, signaling, and power. Modern technologies of fiber optics, microwave, radio, satellite, and computers have been replacing the pole lines.
