UP 4-6-6-4 #3991 - Union Pacific Challenger         
The engineer looks like a tiny toy compared to the massive hulk of this 4-6-6-4 Challenger steam locomotive. Built by Alco-Schenectady in June of 1943 (serial #70180), it's massive tractive effort of 97,352 lb helped move freight over the mountainous Western ranges until being "vacated" in June of 1961. Glenn H. Davis photo
Date: 7/28/1954 Location: North Platte, NE   Map Show North Platte on a rail map Views: 480 Collection Of:   Gary Everhart
Locomotives: UP 3991(4-6-6-4)    Author:  Gary Everhart
UP 4-6-6-4 #3991 - Union Pacific Challenger
Picture Categories: Roster,Steam This picture is part of album:  UP 4-6-6-4 Challengers
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