The 4-6-6-4 Challenger Steam locomotive, Steam trains photography, Locomotive

Union Pacific LEGACY LionMaster Challenger 4-6-6-4 Steam Locomotive #3989

Sold at Auction: American Locomotive Company / Alco Union Pacific 4-6-6-4 Challenger # 3902 Framed Builders Photograph

Model Locomotive Collection Garrattfan

4-6-6-4 Challenger Steam Locomotives

MTH Premier line O gauge 4-6-6-4 Challenger

Union Pacific 3977 4-6-6-4 Challenger Class Live Steam

Union Pacific 4-6-6-4 LEGACY Challenger (coal fired) #3967

8x10 photograph. Date stated in description is date of image; NOT the date the photograph was printed. , Every bit of information about this imag

Union Pacific Railroad 4-6-6-4 Challenger #3895 steam up at idle photo

HO 4-6-6-4 Challenger Steam Locomotives Ship

4-6-6-4 Challenger (DC): UP #3907

Locomotive #3985 – Challenger Railroading Heritage of Midwest America

4-6-6-4 — The Challenger Survivors

Sold at Auction: US Hobbies / KTM O scale brass two rail Union Pacific 4-6-6-4 Challenger steam locomotive

One of the Delaware & Hudson's big - American-Rails.com

Athearn - The Union Pacific CSA (Challenger Simple Articulated) Challengers were the first 4-6-6-4 steam locomotive built by American Locomotive Company for the Union Pacific Railroad. Two orders of “original” also known