NS 4083 (rebuilt from C40-9 NS 8790 in April of 2018) leads NS 1024 (SD70ACe) and NS 9659 (C44-9W) and train NS 212 east on Norfolk Southern's Lehigh Line.
The Black Spot: While there are a few variations of the AC44C6M paint scheme, 31 of the 42 locomotives rebuilt by Wabtec/GE in Erie, PA feature a black patch around their headlights: NS 417... (more)
NS 212 heading east on the Norfolk Southern Lehigh Line. The trailing units in the photo are NS 7574 (ES44DC) and NS 4017 (AC44C6M) which was rebuilt from NS 8882 (C40-9) in July of 2016.