[dmforcier]

Originally Posted by Worth1

They do have one working and many others too.

https://youtu.be/0bjrV2rjeSI

Good vid but that's not a Big Boy. That's a 4-8-4 Northern.

Big Boy is a 4-8-8-4. I think four survive. Here's a soppy vid:

Last of the Giants, Pt 1:
https://youtu.be/HR5dEc5VeNw

Pt. 2:
https://youtu.be/p0ri_ciyZ98

As best I can tell, the largest running loco is UP 3985, a 4-6-6-4 Challenger.



BTW, Big Boy is the biggest in this hemisphere. There are (or were) larger in Africa - the giant Beyer-Garrets: 4-8-2 + 2-8-4.