Like a scene from the history books, Amtrak's Southwest Chief races past the classic code lines and semaphore signals at ESS Chapelle. Passengers aboard the Chief are witnessing incredible scenery from the desert southwest. The train provides a front row seat to a land stuck in time.
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.