Here are three things that appear at the end of railways. There is also a derailer but it doesn't always occur at the end of the road.
Balloon: A large section of looped track usually at the end of a spur or branch which allows trains to turn around for the return trip. Buffer or Bumper stop: The barrier installed at the end of a dead end track to prevent rail vehicles from proceeding further. Terminal Station :( esp. U.S.), terminus (esp. UK): A station sited where a railway line or service ends or terminates.
From the end of the US Civil War in 1865, railroad construction boomed. By 1900 the US had 200,000 miles of railway track. This exceeded the total tracks of Europe.
The BNSF Railway is the second-largest freight railroad network in North America, second only to the Union Pacific Railroad. It had 32,166 miles (51,766 km) of track at end of 2008.
By the end of the 1850's railroad construction had almost tripled from the early part of the century. A government grant of 21 million acres of public lands provided a huge incentive for building more track. Without the government's aid, the railroad industry could not have grown so quickly.
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That would be Apocalyptica - Path II.
Tonawanda Railroad ended in 1850.
Mineral Railroad ended in 1867.
Monongahela Railroad ended in 1915.
Manistee Railroad ended in 1889.
Hartsville Railroad ended in 1895.
Ilwaco Railroad ended in 1910.
Missisquoi Railroad ended in 1887.