The Denver & Rio Grande Western Railroad, often shortened to Rio Grande, D&RG or D&RGW, formerly the Denver & Rio Grande Railroad, was an American Class I railroad company. The railroad started as a 3 ft narrow-gauge line running south from Denver, Colorado, in 1870. It served mainly as a transcontinental bridge line between Denver, and Salt Lake City, Utah. The Rio Grande was also a major origin of coal and mineral traffic.
The Union Pacific Railroad, legally Union Pacific Railroad Company and simply Union Pacific, is a freight-hauling railroad that operates 8,300 locomotives over 32,200 miles (51,800 km) routes in 23 U.S. states west of Chicago and New Orleans. Union Pacific is the second largest railroad in the United States after BNSF. Union Pacific and BNSF have a duopoly on transcontinental freight rail lines in the Western United States.
The Southern Pacific was an American Class I railroad network that existed from 1865 to 1996 and operated largely in the Western United States. The system was operated by various companies under the names Southern Pacific Railroad, Southern Pacific Company and Southern Pacific Transportation Company.
The Union Pacific Corporation is a publicly traded railroad holding company. It was incorporated in Utah in 1969 and is headquartered in Omaha, Nebraska. It is the parent company of the current, Delaware-registered, form of the Union Pacific Railroad.
The Chicago and North Western Transportation Company was a Class I railroad in the Midwestern United States. It was also known as the "North Western". The railroad operated more than 5,000 miles (8,000 km) of track as of the turn of the 20th century, and over 12,000 miles (19,000 km) of track in seven states before retrenchment in the late 1970s. Until 1972, when the employees purchased the company, it was named the Chicago and North Western Railway.
The Western Pacific Railroad was a Class I railroad in the United States. It was formed in 1903 as an attempt to break the near-monopoly the Southern Pacific Railroad had on rail service into northern California. WP's Feather River Route directly competed with SP's portion of the Overland Route for rail traffic between Salt Lake City/Ogden, Utah, and Oakland, California, for nearly 80 years. The Western Pacific was one of the original operators of the California Zephyr passenger line.
In the 1970s, the Atchison, Topeka & Santa Fe Railway and Southern Pacific (SP) attempted a merger. It began with the merger of holding companies Santa Fe Industries and the second incarnation of Southern Pacific on December 23, 1983 to form the Santa Fe Southern Pacific Corporation (SFSP), which held the SP shares in a voting trust. After the Interstate Commerce Commission denied the merger, SFSP sold the SP to Rio Grande Industries on October 13, 1988, and was renamed Santa Fe Pacific Corporation on April 25, 1989.
The Salt Lake City Southern Railroad is a 25-mile (40 km) short-line railroad operating between Salt Lake City, and Murray, in Utah, United States. The SL began operating on April 19, 1993, as a RailTex subsidiary. Today the SL is a subsidiary of the Utah Railway and is owned by the Genesee & Wyoming Inc.
The Utah Division of the former Denver & Rio Grande Western Railroad (D&RGW) is a rail line that connects Grand Junction, Colorado and Salt Lake City, Utah in the Western United States. It is now incorporated into the Union Pacific Railroad (UP) system as part of the Central Corridor. The modern Union Pacific has split the line into two subdivisions for operational purposes, the Green River Subdivision between Grand Junction and Helper, Utah and the Provo Subdivision from Helper to Salt Lake City. Daily passenger service is provided by Amtrak's California Zephyr; the BNSF Railway and Utah Railway have trackage rights over the line.
The Utah Southern Railroad was built by the Mormons in 1871-2 to connect Salt Lake City to points south. The line was acquired by the Union Pacific Railroad (UP) in 1875. The Utah Southern Railroad name was initially kept as a separate division of the UP, but over time the line was moved around and divided among different UP subsidiaries. A significant portion of the line, from Provo to Lynndyl, is today known as the Sharp Subdivision. A non-contiguous portion of the line through the Salt Lake Valley is today owned by the Utah Transit Authority and used for the TRAX light rail system.
The following is a brief history of the North American rail system, mainly through major changes to Class I railroads, the largest class by operating revenue.
The following is a brief history of the North American rail system, mainly through major changes to Class I railroads, the largest class by operating revenue.
The Central Corridor is a rail line operated by the Union Pacific Railroad from near Winnemucca, Nevada to Denver, Colorado in the western United States. The line was created after the merger with the Southern Pacific Transportation Company by combining portions of lines built by former competitors. No portion of the line was originally built by the Union Pacific; in fact, some portions were built specifically to compete with the Union Pacific's Overland Route. The line is known for significant feats of engineering while crossing the Wasatch Mountains of Utah and the Rocky Mountains of Colorado. The line features numerous tunnels, the longest and highest of these is the Moffat Tunnel.
Iowa Pacific Holdings was a holding company that owned railroad properties across North America and the United Kingdom, as well as providing services such as railcar repairs, leasing, management and consulting services to other operators. The company was founded in 2001 with headquarters in Chicago, Illinois.
Gale B. Aydelott, better known as "Gus Aydelott," was an American railroad president. He headed the Denver and Rio Grande Western Railroad for nearly three decades.
The history of the Southern Pacific stretches from 1865 to 1998. For the main page, see Southern Pacific Transportation Company; for the former holding company, see Southern Pacific Rail Corporation.
