Tulsa Sapulpa Union railway's new engine "big boy"

Tulsa Sapulpa Union Railway's 111 "big boy" their new geep locomotive. I don't know the history of this unit. It looks like an ex-rio grande or wheeling and lake Erie engine.

[@oklahomainsulatorhunter548]

After doing a little research, this is a gp10 that was originally a gp7 built in 1950. It was Brownsville and Rio Grande International railroad 8463. It was sold to TSU this year. I'm interested if they will repaint it or not.