The 1987 Maryland train collision occurred at 1:30 pm on January 4, 1987, on Amtrak's Northeast Corridor main line in the Chase community in eastern Baltimore County, Maryland, United States, at Gunpow Interlocking, about 18 miles (29 km) northeast of Baltimore. Amtrak train 94, the Colonial (now part of the Northeast Regional, from Washington, D.C., to Boston), crashed into a set of Conrail locomotives running light, and which had fouled the mainline. Train 94's speed at the time of the collision was estimated at about 108 miles per hour (174 km/h).