The City of Las Vegas was a named passenger train operated by the Union Pacific Railroad between Las Vegas, Nevada and Los Angeles, California beginning December 18, 1956.[1] Train Nos. 115 and 116[2] initially utilized General Motors' experimental Aerotrain unitized trainset, but the Union Pacific terminated their lease within a year due to maintenance and performance issues including requiring a helper engine to cross the Cajon Pass.[3] Service on the line continued with standard streamlined equipment painted in UP's Armour Yellow livery.
On September 24, 1961 the name was changed to the Las Vegas Holiday Special, when both the consist and schedule were reduced. Service was discontinued altogether on June 15, 1968.[2]
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