Union Pacific 3977

Coordinates: 41°08′52″N 100°45′11″W / 41.147853°N 100.753113°W

Union Pacific 3977

Type and origin Power type Steam Builder American Locomotive Company Serial number 70160 Build date June 1943

Specifications Configuration 4-6-6-4 Gauge 4 ft 8 ^1⁄2 in (1,435 mm)

Career Operators Union Pacific Numbers 3977 Nicknames "Challenger" Retired 1961 Disposition On static display

Union Pacific 3977 or UP 3977 is a 4-6-6-4 steam locomotive originally owned by Union Pacific Railroad. Its counterpart, Union Pacific 3985, is the largest operating steam locomotive in the world. 3977 was donated to the City of North Platte, Nebraska for display on October 19, 1968. It is on display in Cody Park, next to EMD DDA40X #6922.

External links

• Chronological History of UP in North Platte - official website maintained by Union Pacific Railroad
• Photos of UP 3977