As well as the main line, this railroad also had a spur that ran to Shonash Ravine. It was a long, straight, level track that was used by the train that Doc and Marty "borrowed" to push the DeLorean up to 88 miles per hour before falling off the unfinished bridge and plunging into the ravine. After the bridge was completed in 1886, the spur continued on the other side of the ravine, and was still in use in 1985.