After doing a little research I have found this unit has a rather interesting heritage. BB 10 started life as a C&O GP9, wound up on the ICG/IC (obvious by appearance) where it was rebuilt as a GP10, and later spent time on the Yadkin Valley Railroad.
The "BB" was founded in 1988 and ran its first train on March 6, 1989. The BB has grown from 17 miles of track and two employees to 275 miles and 75 employees, spanning over Virginia in three separate divisions.