Prospector (train)

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One of the Budd-built trainsets in 1941.
Postcard photo of the train.

The Prospector was a passenger train operated by the Denver & Rio Grande Western railroad between Denver, Colorado and Salt Lake City, Utah. There were two incarnations of the train: a streamlined, diesel multiple unit train that operated briefly from 1941 to 1942; and a locomotive-hauled train of conventional passenger equipment that operated from 1945 until 1967.

The 1941-1942 Prospector[edit]

The train was inaugurated November 17, 1941. The original equipment was a pair of Budd Company-built diesel multiple unit trains numbered M-1 and M-2. The trainsets had significant reliability problems exacerbated by difficult terrain and the train was discontinued July 5, 1942. The trainsets were returned to Budd and ultimately scrapped.

For the inaugural trip in 1941, the railroad made stainless steel pass holders that were intended to be distributed to passengers. The holder was engraved with a line drawing of the train on the outside. On the inside were two cards—one with an embossed picture of a prospector and mule in gold, the other with a message reading:

"Denver & Rio Grande Western Railroad is honored to welcome _____ on the inaugural trip of the Prospector. New, diesel power, stainless steel streamlined train designed for overnight every night service between Denver and Salt Lake City."

The holders were not distributed as intended to passengers.[citation needed]

The Postwar Prospector[edit]

Prospector route[1]
Distance Station
0 Union Station, Denver, Colorado
50 mi (80 km) East portal, Moffat Tunnel
Continental Divide
56.2 mi (90.4 km) West portal, Moffat Tunnel
103 mi (166 km) Kremmling
129 mi (208 km) Bond
185 mi (298 km) Glenwood Springs
212 mi (341 km) Rifle
275 mi (443 km) Grand Junction
Colorado/Utah border
353 mi (568 km) Thompson
444 mi (715 km) Price
526 mi (847 km) Provo
570 mi (920 km) Salt Lake City, Utah

Anticipating increases in overnight Denver-Salt Lake City rail passenger traffic after the end of World War II, the Rio Grande restored the Prospector on October 1, 1945 using conventional heavyweight equipment. The railroad also began planning the acquisition of new lightweight equipment for the train. In 1949 it purchased three dome-observation cars built by Budd, and in 1950 it took delivery of 25 Pullman-Standard cars — equipment that had been ordered by the Chesapeake and Ohio Railway, but never used by that railroad. The Pullman-Standard cars began service on the Prospector in late 1950, whereas the Budd dome cars generally served on the Royal Gorge (see below) and therefore only appeared on the Prospector west of Grand Junction, Colorado.

In response to a coal miners' strike, in 1950 the Rio Grande began combining the Prospector and the railroad's Royal Gorge train west of Grand Junction. This combined operation continued until 1964 when Royal Gorge service was cut back to Salida, Colorado. Between 1950 and 1953 the train's western terminus was extended from Salt Lake City to Ogden.

Between 1964 and 1967 the railroad occasionally attached flatcars carrying highway vans —piggyback cars — to the rear of the Prospector, a relatively rare combination of passenger and freight service in the same train.

The Prospector made its final runs on May 28, 1967.


  • Davis, Michael B. "Prospector: The Judge's Train." Colorado Rail Annual Number Nine. Golden, Colorado: Colorado Railroad Museum, 1971. ISBN 0-918654-09-2.
  • Eager, Jim Rio Grande Color Guide to Freight and Passenger Equipment 1996.
  • Griffin, James Rio Grande Railroad 2003.
  • Thode, Jackson C. A Century of Passenger Trains... And Then Some 1972.
  1. ^ Timetable Treasury. New York: Wayner Publications. 1979. p. 144.