Union Pacific Big Boy Locomotives
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Union Pacific Big Boy Locomotives |
Union Pacific Big Boy Locomotive 4014. In Greeley and Fort Lupton, CO, on its way to Denver. Photos taken 7/28/2022.
Union Pacific Steam & Heritage Collection, Cheyenne WY, 41°7'46.9308"N 104°48'49.1688"W
Union Pacific Big Boy 4014, Greeley, CO. |
Union Pacific Big Boy 4014, Greeley, CO. |
Union Pacific Big Boy 4014, Greeley, CO. |
Union Pacific Big Boy 4014, Greeley, CO. |
Union Pacific Big Boy 4014, Greeley, CO. |
Union Pacific Big Boy 4014, north of Ft. Lupton, CO. |
Union Pacific Big Boy 4014, north of Ft. Lupton, CO. |
Union Pacific Big Boy 4014, north of Ft. Lupton, CO. |
Union Pacific Big Boy Locomotive 4005. Photos taken 3/31/2023.
Forney Museum of Transportation, Denver CO, 39°46'37.38"N 104°58'13.8"W
Forney Museum of Transportation |
Union Pacific Big Boy 4005 |
Union Pacific Big Boy 4005 |
Union Pacific Big Boy 4005 |
Union Pacific Big Boy 4005 |
Union Pacific Big Boy 4005 |
Union Pacific Big Boy 4005 |
Union Pacific Big Boy 4005 |
Union Pacific Big Boy 4005 |
Union Pacific Big Boy 4005 |
Union Pacific Big Boy Locomotive 4023. Photos taken 1/17/2023.
Kenefick Park, Omaha NE, 41°13'55.7"N 095°55'4.1"W
Lauritzen Gardens and Kenefick Park |
Kenefick Park |
Union Pacific Big Boy 4023 |
Union Pacific Big Boy 4023 |
Union Pacific Big Boy 4023 |
Union Pacific Big Boy 4023 |
Union Pacific Big Boy 4023 |
Union Pacific Big Boy 4023 |
Union Pacific Big Boy 4023 |
1969 Union Pacific Centennial 6900 |
1969 Union Pacific Centennial 6900 |
1969 Union Pacific Centennial 6900 |
Union Pacific Big Boy Locomotive 4004. Photos taken 7/23/2019.
Holliday Park, Cheyenne WY, 41°08'12.30"N 104°47'59.4"W
Union Pacific Big Boy 4004 |
Union Pacific Big Boy 4004 |
Union Pacific Big Boy 4004 |
Union Pacific Big Boy 4004 |
Union Pacific Big Boy Locomotive 4012. Photos taken 6/27/2019 and 7/18/2022.
Steamtown National Historic Site, Scranton PA, 41°24'26.96"N 075°40'10.8"W
Union Pacific Big Boy 4012, 6/27/2019 |
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Union Pacific Big Boy 4012 |
Union Pacific Big Boy 4012 |
Union Pacific Big Boy 4012 |
Union Pacific Big Boy 4012 |
Union Pacific Big Boy 4012 |
The Union Pacific Big Boy is a type of simple articulated 4-8-8-4 steam locomotive manufactured by the American Locomotive
Company (ALCO) between 1941 and 1944. Locomotive and tender; length 85 and 47 feet (total 132 feet); weight 762,000 and
427,500 pounds (total 1,189,500 pounds). Most of the 25 Big Boys were scrapped, but seven remain on static display and one,
Number 4014, was rebuilt to operating condition by Union Pacific's steam program and is still active.
Other surviving Big Boy locomotives
4006, National Museum of Transportation, St. Louis MO, 38° 34'19.73"N 090°27'40.0"W
4017, National Railroad Museum, Green Bay WI, 44°29'02.70"N 088°02'55.1"W
4018, Museum of the American Railroad, Frisco TX, 33.144513°N 96.833444°W