On October 5, 2015, at 10:22 a.m. eastern daylight time (EDT), southbound National Passenger Railroad Corporation (Amtrak) passenger train 55 derailed at milepost (MP) 65.2 after striking a rock pile that fouled the track on the New England Central Railroad (NECR) Roxbury Subdivision track near Northfield, Vermont. The collision caused the locomotive and four coach cars to derail; the locomotive and the first coach car slid down a steep embankment. (See figure 1.) Four train crew members and three passengers were injured. Amtrak estimated the equipment damages at $10 million, and the NECR estimated the track-related damages at $200,000.