Denver and Rio Grande Western Railroad

Denver and Rio Grande Western Railroad
Company type	Railroad
Industry	Rail transport
Predecessor	Denver & Rio Grande Railway, Rio Grande Western Railway
Founded	1870
Founder	William Jackson Palmer
Defunct	1992
Fate	Merged into Southern Pacific Transportation Company; later lines acquired by Union Pacific Railroad
Successor	Southern Pacific Transportation Company (as operating division until 1992)
Headquarters	Denver, United States
Area served	Colorado, New Mexico, Utah
Key people	William Jackson Palmer (founder), William Bell, Frederick Lovejoy, William S. Jackson
Products	Freight and passenger rail services, including Rio Grande Zephyr
Owner	Rio Grande Industries (parent company before merger)
Parent	Rio Grande Industries (before 1988)

Denver and Rio Grande Western Railroad

The Denver and Rio Grande Western Railroad (commonly abbreviated as DRGW), also known as Rio Grande, D&RG, or D&RGW, was a prominent American Class I railroad. Established in 1870 initially as a narrow-gauge route originating in Denver, Colorado, it primarily served as a transcontinental connector between Denver and Ogden, Utah, with a strong emphasis on transporting coal and minerals.

Renowned for its expertise in mountain railroading, the railroad’s slogan was Through the Rockies, not around them, emphasizing its direct passage through the Rocky Mountains. The DRGW operated the highest mainline railway in the United States, crossing Tennessee Pass at an elevation exceeding 10,240 feet. Its key routes included the Moffat Tunnel and passage through the Royal Gorge. By 1889, it boasted the largest narrow-gauge network in North America, encompassing 1,861 miles of track across Colorado, New Mexico, and Utah.

Maintaining its independence for many years, the railroad offered services such as the Rio Grande Zephyr, which was the last privately operated intercity passenger train in the U.S. until 1983. In 1988, Rio Grande Industries—the parent company—acquired Southern Pacific Transportation Company; following this merger, the combined enterprise adopted the Southern Pacific name. The Rio Grande continued to operate as a division until 1992. Presently, most former DRGW lines are owned by Union Pacific Railroad, with some segments preserved as heritage railways.

Overview

The Denver & Rio Grande Railway (D&RG) was established on October 27, 1870, by General William Jackson Palmer (1836–1909) alongside a board of four directors. The initial plan envisioned a southward line from Denver to El Paso via Pueblo, tracing the Arkansas River and traversing Colorado’s San Luis Valley toward the Rio Grande River. Palmer’s partner in business ventures, Dr. William Bell, assisted in laying the first rails out of Denver on July 28, 1871; by October of that year, tracks reached Colorado Springs. Narrow gauge was selected due to its cost-effectiveness and suitability for rugged mountainous terrain—a choice influenced by Palmer’s observations of Wales’ Ffestiniog Railway. Over time, the route plans evolved to include extensions south from Pueblo over Raton Pass as competitive dynamics and market demands shifted.

Conflicts with the Atchison, Topeka and Santa Fe Railway (AT&SF) escalated into the Railroad Wars between 1877 and 1880; these disputes involved both legal challenges and armed confrontations over track rights. In 1880, a Boston court awarded AT&SF access to Raton Pass while D&RG paid $1.4 million for trackage rights through the Arkansas River’s Royal Gorge—securing entry to the profitable Leadville mining region. This agreement, known as the "Treaty of Boston," significantly influenced D&RG’s strategic expansion westward into Utah.

By late 1880, William Bell oversaw construction efforts in Utah that culminated in forming the Palmer-controlled Denver & Rio Grande Western Railway (D&RGW) in 1881. The D&RGW sought to extend eastward from Provo to connect with D&RG lines in Colorado; this connection was completed near Green River on March 30, 1883. By May of that year, D&RG formally leased its Utah subsidiary. Rapid expansion strained finances leading to Palmer’s resignation as D&RG president in August 1883; however, he retained leadership of the Western line. Frederick Lovejoy succeeded him on the D&RG board.

Following ongoing disagreements with Rio Grande Western and persistent financial challenges, D&RG entered receivership in July 1884 under court-appointed receiver William S. Jackson. Foreclosure proceedings resulted in establishing the Denver & Rio Grande Railroad on July 14, 1886, with Jackson serving as president. Palmer continued heading the Utah operations until his retirement in 1901.

The railroad’s main heavy repair facilities were situated south of Denver in Burnham; originally constructed in 1871 for servicing both narrow and standard gauge equipment. A $3 million modernization project completed in 1922 expanded locomotive and car repair capabilities. The final steam locomotive received maintenance there in 1956 before transitioning fully to diesel servicing. Additional significant repair shops operated in Salt Lake City (built in 1883) and Alamosa, Colorado—primarily dedicated to narrow gauge rolling stock.

Royal Gorge Route

The Denver and Rio Grande Railroad (D&RG) extended its line westward from Pueblo to Cañon City in 1874, reaching Salida by May 20, 1880, and later that year arriving at Leadville. From Salida, the track traversed the Continental Divide at Marshall Pass, arriving in Gunnison on August 6, 1881. The route then passed through the Black Canyon carved by the Gunnison River, crossed over Cerro Summit, and reached Montrose by September 8, 1882. Continuing northward through Delta, it arrived at Grand Junction by March 1883. Eventually, this line connected near Green River with the Rio Grande Western Railway heading to Salt Lake City, Utah, thus establishing a narrow-gauge transcontinental corridor.

In 1887, the segment between Pueblo and Leadville was converted to dual gauge to accommodate both narrow and standard-gauge traffic. Additional branch lines extended service to locations such as Chama, New Mexico, Durango, and Silverton among others.

Starting in 1926, the D&RG began adorning its rolling stock with the "Royal Gorge Route" emblem to highlight its scenic passage; this design was refreshed in 1936 and later replaced by the "Flying Rio Grande" insignia in 1939.

The Tennessee Pass route was characterized by steep inclines necessitating the use of helper locomotives. Following the merger of D&RGW/SP with Union Pacific (UP) in 1996, UP ceased operations on this line in 1997. Although inactive for over twenty years, the rails remain in place; however, many signals have either deteriorated or been removed under federal funding programs.

San Juan Extension

By 1877, the D&RG had pushed westward from Walsenburg, Colorado across La Veta Pass (Old La Veta Pass), featuring one of the highest narrow-gauge depots in the United States. The railroad reached Alamosa by 1878. From Alamosa, lines extended southward through Antonito to Santa Fe, New Mexico—known as the Chili Line—and westward toward Creede, Colorado. A notable tangent track connected Alamosa directly with Salida. The Antonito line crossed over Cumbres Pass, arriving at Durango in August 1881 and extending north to mining districts near Silverton by July 1882. In 1902, a standard-gauge connection linked Durango southward to Farmington, New Mexico, anticipating a potential gauge conversion.

This gauge adjustment was partly influenced by Southern Pacific’s intentions to reach northern San Juan basin coal deposits via its subsidiary Arizona & Colorado Railroad Company. The Farmington line reverted to narrow gauge in 1923 and subsequently supported local oil and gas operations into the 1960s.

Portions of the Alamosa–Durango route remain operational: the Walsenburg–Alamosa–Antonito segment functions as standard gauge under the Colorado Pacific Rio Grande Railroad and offers passenger excursions through the Rio Grande Scenic Railroad. Heritage narrow-gauge railways include Antonito–Chama’s Cumbres and Toltec Scenic Railroad and Durango–Silverton’s Durango and Silverton Narrow Gauge Railroad.

The Rio Grande Southern Railroad connected at Durango and served areas west of the San Juan Mountains extending to Ridgway on the Montrose–Ouray branch.

Tennessee Pass

The Denver & Rio Grande (D&RG) extended its line westward from Leadville across Tennessee Pass to reach mining districts near Aspen, Colorado, entering into competition with the Colorado Midland. By October 1887, the D&RG had completed a rail connection through Glenwood Canyon to Glenwood Springs, eventually reaching Aspen. Subsequently, it collaborated with Colorado Midland to link Glenwood Springs and Grand Junction. Initially considered a minor branch, the Leadville to Grand Junction route was converted to standard gauge in 1890, which demoted the narrow-gauge line via Marshall Pass to a secondary role.

Denver & Rio Grande Western

From 1881 to 1889, the Denver & Rio Grande Western Railway constructed a narrow-gauge route running from Ogden, Utah through Soldier Summit, Utah to Grand Junction, Colorado. After reorganizing as the Rio Grande Western Railway in 1889, it upgraded these lines to standard gauge and expanded branch lines in Utah to access coal deposits. The Denver & Rio Grande merged with Rio Grande Western in 1901, completing consolidation by 1908. However, speculative investments strained the railroad’s finances as it funded the construction of the Western Pacific Railroad through equity offerings. Control of the railroad transferred to the United States Railroad Administration during World War I. Following Western Pacific’s bankruptcy in 1918, D&RG entered receivership. The Denver & Rio Grande Western Railroad (D&RGW) was established in 1920 and officially reorganized by 1921.

Moffat Road

In 1931, D&RGW acquired the Denver and Salt Lake Western Railroad, which held rights for a connection between the two railroads. After negotiations, D&RGW obtained trackage rights on the Denver and Salt Lake Railroad (D&SL) from Denver to the new cutoff point. Construction on the Dotsero Cutoff began near Glenwood Springs in 1932 and was finished by 1934, creating a direct transcontinental link westward from Denver. Despite this important infrastructure advancement, D&RGW declared bankruptcy again in 1935 but reemerged in 1947. On March 3 of that year, it merged with D&SL, thereby gaining control over the "Moffat Road" route via the Moffat Tunnel and acquiring a branch line from Bond to Craig, Colorado.

"Fast Freights" and the California Zephyr, 1950–1983

Having overcome financial difficulties, D&RGW secured a direct rail connection between Denver and Salt Lake City that bypassed the longer route through Pueblo and Tennessee Pass. Nevertheless, Union Pacific’s northern line remained quicker for transcontinental travel due to its gentler terrain. To remain competitive, D&RGW implemented a "fast freight" strategy featuring multiple diesel locomotives hauling shorter, more frequent trains. This method hastened the retirement of coal-powered steam engines by 1956 by maximizing horsepower through diesel multiple-unit operation and allowing tighter scheduling.

The distinctive geography of D&RGW influenced its participation in the California Zephyr, a collaborative passenger service operated alongside Chicago, Burlington and Quincy Railroad (CB&Q) and Western Pacific Railroad. While Union Pacific provided faster transcontinental service, the Zephyr focused on offering scenic "rail cruise" experiences through mountainous terrain. Although initially profitable during the 1950s, earnings declined by the mid-1960s and became limited to peak travel times. Western Pacific withdrew in 1970 due to financial losses; however, D&RGW continued operating its portion as the Rio Grande Zephyr until 1983. Persistent revenue shortfalls led D&RGW to cease passenger operations and join Amtrak, which rerouted and rebranded this service under the current California Zephyr.

While adopting standard-gauge diesel technology for both freight and passenger services, D&RGW maintained narrow-gauge steam operations on historic routes such as Durango–Silverton. Most narrow-gauge lines were abandoned during the 1950s and 1960s. By 1970, D&RGW managed 1,903 miles of mainline track over a total of 3,227 miles of rail infrastructure, transporting 7,733 million ton-miles of revenue freight alongside 21 million passenger-miles.

Two picturesque narrow-gauge lines remained under D&RGW control until sold to heritage operators: the Cumbres and Toltec Scenic Railroad (Antonito to Chama) in 1970 and Durango–Silverton in 1981—marking one hundred years since its original launch.

Southern Pacific Consolidation

In 1988, Rio Grande Industries, under the leadership of Philip Anschutz, purchased the Southern Pacific Transportation Company (SP). The Denver and Rio Grande Western Railroad (D&RGW) adopted the Southern Pacific name due to its greater familiarity among freight customers. Gradually, the D&RGW’s emphasis on rapid freight service gave way to Southern Pacific’s strategy of operating longer but slower trains, a shift driven by increasing diesel fuel expenses following the 1973 oil crisis. By the early 1990s, the merged Rio Grande/Southern Pacific network had diminished its competitive position and became heavily dependent on coal transportation from mines in Colorado and Utah.

Following the merger, D&RGW locomotives preserved their original reporting marks and color schemes until the Union Pacific acquisition. A significant update involved Southern Pacific’s "Bloody Nose" paint design being modified by replacing its serif typeface with Rio Grande’s distinctive "speed lettering" on locomotives constructed or repainted after the consolidation.

Union Pacific Merger

On September 11, 1996, Anschutz divested the combined D&RGW/SP system along with its parent company, Southern Pacific Rail Corporation, selling them to Union Pacific Corporation. This decision was influenced by the earlier merger between Burlington Northern and Santa Fe that transformed the railroad industry landscape. As Union Pacific absorbed D&RGW, its unique identity gradually disappeared. The last original D&RGW locomotive in full Rio Grande livery within Union Pacific, D&RGW 5371, was retired in December 2008 and subsequently donated to the Utah State Railroad Museum in 2009. Numerous Rio Grande locomotives underwent patch renumbering and were repainted into Union Pacific’s signature Armour Yellow.

In 2006, Union Pacific unveiled UP 1989, an EMD SD70ACe locomotive adorned with a stylized D&RGW paint scheme as part of its heritage fleet, honoring the legacy of the railroads it had merged with.

Presidents

Prominent leaders who served as presidents of D&RGW and its predecessors include:

William Jackson Palmer, 1870–1883
Frederick Lovejoy, 1883–1884
William S. Jackson, 1884–1887 (receiver 1884–1886)
David H. Moffat, 1887–1891
Edward Turner Jeffery, 1891–1912
Benjamin Franklin Bush, 1912–1915
Henry U. Mudge, 1915–1917
Edward L. Brown, 1917–1918
Alexander R. Baldwin and Edward L. Brown, 1918–1921 (receivers)
Joseph H. Young, 1921–1923 (receiver 1922–1923)
Thomas H. Beacom, 1923–1924 (receiver)
John S. Pyeatt, 1924–1935
Wilson McCarthy and Henry Swan, 1935–1947 (trustees)
Wilson McCarthy, 1947–1956
Gale B. Aydelott ("Gus"), 1956–1977
William J. Holtman, 1977–1992

Rolling stock

By the year 1948, the railroad's inventory included 318 steam locomotives, 62 diesel units, 179 passenger cars, and a fleet of 14,662 freight cars. By 1962, steam locomotives had been reduced to just 22, while diesel engines increased substantially to 257; passenger cars numbered 96 and freight cars totaled 12,386.

Passenger trains

The following selection represents notable passenger trains operated by D&RGW. Westbound services were assigned odd numbers; eastbound runs carried even numbers. Throughout its history, the railroad named over 180 different trains.

Train numbers	Train name	Endpoints	Years of operation
1/2	Scenic Limited	Denver-Salt Lake City (via Royal Gorge)	1906–1946
1/2	Royal Gorge	Denver-Grand Junction (via Royal Gorge)	1946–1967
3/4	Colorado Eagle	St. Louis-Denver	1942–1966
5/6	The Exposition Flyer	Chicago-Oakland	1939–1949
7/8	Prospector	Denver-Salt Lake City/Ogden	1941–1942; 1945–1967
9/10	Yampa Valley Mail / Yampa Valley	Denver-Craig	1949–1968
17/18	California Zephyr	Chicago-Oakland	1949–1970; 1983–present (Amtrak operated)
17/18	Rio Grande Zephyr	Denver-Salt Lake City-Ogden	1970–1983
19/20	Mountaineer	Denver-Grand Junction-Montrose	1936–1959
115/116	San Juan Express	Alamosa-Durango	1937–1951
315/316	Shavano	Salida-Gunnison	1937–1940
461/462	'The Silverton'	(Durango-Silverton)	(1947–1980 summer only)
Special	'Ski Train'	(Denver-Winter Park)	(1940–2009; Amtrak resumed operation in 2016)
6/10	'Cumbres And Toltec Scenic Railroad'	(Antonito-Chama)	(1970–present; operated by Cumbres and Toltec Railroad)

Remnants

Union Pacific took ownership of all Denver & Rio Grande Western (D&RGW) assets through the merger and now manages the former D&RGW main line as part of its Central Corridor. Various branch lines and other properties have been sold off, abandoned, or transformed, including several heritage railways that originated from the Denver & Rio Grande Western.

Operational and restored elements

Rail lines with D&RGW origins that remain active but are not under Union Pacific include:

California Zephyr – once operated by D&RGW, currently managed by Amtrak. Numerous Amtrak stations along this route preserve original D&RGW buildings in locations such as Helper, Green River, Glenwood Springs, and Grand Junction.
FrontRunner – a commuter rail service in Utah running between Salt Lake City and Provo on tracks parallel to the former D&RGW main line.
Red Line (TRAX) – Salt Lake City’s light rail system utilizing a reconstructed right-of-way from a disused D&RGW spur that served the Bingham Canyon mine.
Rock and Rail LLC
Colorado Pacific Rio Grande Railroad
S Line (Utah Transit Authority) – a streetcar line in Salt Lake City operating on the revitalized right-of-way of the former D&RGW Sugar House branch.
Winter Park Express (previously known as Ski Train), operated by Amtrak.
Utah Central Railway (1992)

Heritage railroads

Cumbres and Toltec Scenic Railroad – offers narrow gauge scenic excursions between Antonito, Colorado, and Chama, New Mexico, along isolated remnants of the San Juan Line.
Durango and Silverton Narrow Gauge Railroad – in operation since 1881, providing scenic journeys from Durango to Silverton on a surviving segment of the San Juan line.
Ghost Town & Calico Railroad – operates historic narrow-gauge steam locomotives and period rolling stock at Knott's Berry Farm amusement park in California.
Heber Valley Historic Railroad – runs scenic trips through Provo Canyon on a former D&RGW branch now disconnected from the national rail network.
Rio Grande Scenic Railroad – heritage service on an active former D&RGW branch; ceased operations in 2019.
Royal Gorge Route Railroad – operates over 12 miles of the preserved but otherwise inactive Royal Gorge/Tennessee Pass line.

Repurposed properties

La Veta Pass Narrow Gauge Railroad Depot – Historic D&RGW depot located on La Veta Pass, in use until 1899.
D & RGW Narrow Gauge Trestle – A trestle structure from the abandoned Marshall Pass route.
The old D&RG main line between Salt Lake City and Ogden, Utah, abandoned after the Union Pacific merger, has been converted into a rail trail.
The Thistle–Marysvale branch traversing Marysvale Canyon has also been transformed into a rail trail featuring multiple tunnels.

Museums

The most extensive collection of surviving California Zephyr rolling stock is housed at the Western Pacific Railroad Museum in Portola, California, which primarily focuses on the Western Pacific Railroad rather than Rio Grande.

Notable museums centered on D&RGW history include:

Former D&RGW depots now serving as museum facilities:

Bibliography

External links

Denver and Rio Grande Western Railroad