New SD70ACes on the Buffalo Line! NS train 630 -Driftwood to Baltimore export coal - is southbound at Mahoning Street in Milton, PA on April 25, 2011. The train is off the Buffalo and Pittsburgh RR and was interchanged to NS at Driftwood. The 2 new SD70ACes went North with a 631 to Driftwood and returned south. NS 1005 and NS 1017 are the power which were built by EMD in London, ON and are about 1 month old.