Union Pacific #3985 Challenger Steam Locomotive at Pacific… | Flickr

Challenger Class Steam Engine

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Steam locomotive profile: 4-6-6-4 Challenger | Classic Trains Magazine
Steam locomotive profile: 4-6-6-4 Challenger | Classic Trains Magazine

Challenger original

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10 Largest Steam Locomotives Ever Built - Largest.org
10 Largest Steam Locomotives Ever Built - Largest.org

Union pacific "challenger" 3977 (1943) the challengers were the direct

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4-6-6-4 "Original" Challenger - YouTube
4-6-6-4 "Original" Challenger - YouTube

The 4-6-6-4 Challenger | Steam locomotive, Locomotive, Train pictures
The 4-6-6-4 Challenger | Steam locomotive, Locomotive, Train pictures

Union Pacific Challenger steam locomotive No.... - jimH's Album
Union Pacific Challenger steam locomotive No.... - jimH's Album

UP Challenger #3977 - www.rgusrail.com
UP Challenger #3977 - www.rgusrail.com

1998 Challenger Class A Motorhome Challenger by Damon | The Denver
1998 Challenger Class A Motorhome Challenger by Damon | The Denver

Union Pacific "Challenger" 3977 (1943) The Challengers were the direct
Union Pacific "Challenger" 3977 (1943) The Challengers were the direct

Locomotive profile: 4-6-6-4 Challenger type steam locomotive | Trains
Locomotive profile: 4-6-6-4 Challenger type steam locomotive | Trains

Close up detail of Historic Challenger locomotive steam engine during
Close up detail of Historic Challenger locomotive steam engine during

Union Pacific #3985 Challenger Steam Locomotive at Pacific… | Flickr
Union Pacific #3985 Challenger Steam Locomotive at Pacific… | Flickr

Union Pacific Challenger Steam Locomotive 3977 - YouTube
Union Pacific Challenger Steam Locomotive 3977 - YouTube